Document:

EXHIBIT 10.41

                          REGISTRATION RIGHTS AGREEMENT

                  REGISTRATION RIGHTS AGREEMENT,  dated as of February 20, 2001,
among SAVVIS  COMMUNICATIONS  CORPORATION,  a Delaware  corporation  ("Savvis"),
WELSH,  CARSON,  ANDERSON & STOWE VIII,  L.P.,  a Delaware  limited  partnership
("WCAS "), WCAS  MANAGEMENT  CORPORATION  ("WCAS  Management"),  and the several
other persons  affiliated  with WCAS listed on the  signature  pages hereto (the
"WCAS Persons").  WCAS, WCAS  Management,  the WCAS Persons and their successors
and  permitted  assigns  are  hereinafter  sometimes   collectively  called  the
"Investors".

                              W I T N E S S E T H:

                  WHEREAS, WCAS and Bridge Information Systems, Inc., a Missouri
corporation  ("Bridge") are parties to a Stock Purchase  Agreement,  dated as of
February 7, 2000 (the  "February  2000 Purchase  Agreement"),  pursuant to which
Bridge sold to WCAS  6,250,000  shares (the  "February  2000 Common  Shares") of
Common Stock.  $.01 par value ("Savvis Common Stock"),  of Savvis  determined in
accordance  with  Section  1  thereof,  on the terms  and  conditions  set forth
therein;

                  WHEREAS,  in order to induce  WCAS to enter into the  February
2000 Purchase  Agreement and consummate the transactions  contemplated  thereby,
Bridge and Savvis  granted to WCAS certain  registration  rights with respect to
the February 2000 Common Shares pursuant to the Registration  Rights  Agreement,
dated as of February 7, 2000 (the  "Original  Registration  Rights  Agreement"),
among Savvis, WCAS and Bridge;

                  WHEREAS,  the  WCAS  Persons  and  Savvis  are  parties  to  a
Securities Purchase  Agreement,  dated as of the date hereof (the "February 2001
Purchase  Agreement"),  pursuant  to which  Savvis  desires  to sell to the WCAS
Persons,  their  successors and permitted  assigns up to  $20,000,000  aggregate
principal amount of 10% Convertible  Senior Secured Notes of Savvis  convertible
into such number of shares (the "February  2001 Common Shares" and  collectively
with the February  2000 Common  Shares,  the "Savvis  Common  Shares") of Common
Stock determined  according to Sections 15 (and subject to adjustment  according
to Section 16) of such notes;

                  WHEREAS, in order to induce the WCAS Persons to enter into the
February 2001 Purchase  Agreement and consummate the  transactions  contemplated
thereby, Savvis has agreed to grant the WCAS Persons certain registration rights
with respect to all of the Savvis Common Shares; and

                  WHEREAS,  the  execution of this  Agreement is not intended to
amend,  modify,  change,  restate or terminate the Original  Registration Rights
Agreement  and all rights and  obligations  of the  parties  under the  Original
Registration Rights Agreement will continue to be of force and effect;

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                  NOW, THEREFORE, the parties hereto agree as follows:

                  SECTION  1.   Certain   Definitions.   For  purposes  of  this
         Agreement, the following terms have the meanings set forth below:

                  "Commission" means the Securities and Exchange Commission,  or
         any other federal agency at the time administering the Securities Act.

                  "Exchange  Act" means the  Securities  Exchange Act of 1934 or
         any successor  federal  statute,  and the rules and  regulations of the
         Commission thereunder, all as the same shall be in effect at the time.

                  "Restricted  Stock"  means,  at any time,  the  Savvis  Common
         Shares and any shares of Savvis common stock  issuable upon or issuable
         with respect to the Savvis  Common  Shares by way of stock  dividend or
         stock  split  or  in   connection   with  a   combination   of  shares,
         recapitalization,  merger,  consolidation  or other  reorganization  or
         otherwise,  in each case only so long as such shares have not been sold
         to the public pursuant to an effective registration statement under, or
         pursuant to Rule 144 under, the Securities Act.

                  "Securities  Act"  means  the  Securities  Act of 1933 (or any
         successor  federal  statute)  and  the  rules  and  regulations  of the
         Commission thereunder, as the same shall be in effect at the time.

                  "Transfer"  means,  with respect to any Restricted  Stock, the
         sale, transfer, assignment, pledge, encumbrance,  distribution or other
         disposition of such securities.

                  SECTION 2. Transfers of Restricted Stock.

                  (a) Notice of  Transfer.  If any Investor  shall  Transfer any
shares of Restricted Stock,  notice of which Transfer is not otherwise  required
to be  delivered  to Savvis  hereunder,  then within  three days  following  the
consummation  of such  Transfer,  such Investor  shall deliver notice thereof to
Savvis.

                  (b) Securities Law  Compliance.  Each Investor  agrees that it
will not effect any  Transfer  of any shares of  Restricted  Stock  unless  such
Transfer  is made  pursuant to an  effective  registration  statement  under the
Securities Act or pursuant to an exemption from, or in a transaction not subject
to, the registration requirements of the Securities Act (and, in either case, in
compliance with all applicable state securities laws).  Savvis agrees,  and each
Investor  understands  and  consents,  that  Savvis will not cause or permit the
Transfer  of any shares of  Restricted  Stock to be made on its books (or on any
register  of  securities  maintained  on its  behalf)  unless  the  Transfer  is
permitted  by,  and has been  made in  accordance  with,  (x) the  terms of this
Agreement  and (y) all  applicable  federal  and  state  securities  laws.  Each
Investor agrees that in connection with any Transfer of Restricted Stock that is
not made pursuant to a registered public offering, Savvis may request an opinion
of legal counsel  reasonably  acceptable to Savvis (it being agreed that Reboul,
MacMurray,  Hewitt,  Maynard &  Kristol  and  Schulte  Roth & Zabel

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LLP shall be  satisfactory)  for the  transferring  Investor  stating  that such
transaction is exempt from  registration  under all applicable  laws;  provided,
however, that no such opinion shall be required in the case of a transfer by any
Investor to its  affiliates  or, if any such entity is a partnership  or limited
liability  company, a transfer by any Investor or its affiliates to its partners
or members.

         (c)  Securities  Act Legend For  Certificates.  From and after the date
hereof  (and  until  such time as such  securities  have been sold to the public
pursuant to an effective  registration  statement  under the  Securities  Act or
pursuant to Rule 144 or the holder of such  securities  shall have requested the
issuance of new  certificates  in writing and  delivered to Savvis an opinion of
legal  counsel  reasonably  acceptable  to Savvis (it being  agreed that Reboul,
MacMurray,  Hewitt,  Maynard &  Kristol  and  Schulte  Roth & Zabel LLP shall be
satisfactory) to such effect) all certificates representing shares of Restricted
Stock that are held by any  Investor  shall bear a legend  which shall state the
following:

         "THE SHARES  EVIDENCED  BY THIS  CERTIFICATE  HAVE NOT BEEN  REGISTERED
         UNDER THE SECURITIES ACT OF 1933, AS AMENDED,  NOR ANY APPLICABLE STATE
         LAW,  AND  NO  INTEREST   HEREIN  MAY  BE  OFFERED,   SOLD,   ASSIGNED,
         DISTRIBUTED,  PLEDGED OR OTHERWISE  TRANSFERRED  UNLESS (A) THERE IS AN
         EFFECTIVE  REGISTRATION  STATEMENT WITH RESPECT  THERETO UNDER SAID ACT
         AND LAWS OR (B) SUCH TRANSACTION IS EXEMPT FROM SUCH REGISTRATION."

         SECTION 3. Registration Rights.

         (a) Demand  Registration  Rights.  Subject to paragraph  (j) below,  if
Savvis  shall at any time be  requested  by  Investors  holding  a  majority  in
interest of the Restricted  Stock, in a writing that states the number of shares
of Restricted  Stock to be sold and the intended  method of disposition  thereof
(each such written request,  a "Demand Notice"),  to effect a registration under
the Securities  Act of all or any portion of the  Restricted  Stock then held by
such requesting Investors, Savvis shall immediately notify in writing (each such
notice,  a  "Demand  Further  Notice")  each  other  Investor  (other  than  the
requesting Investors) of such proposed registration and shall use its reasonable
best efforts to register  under the Securities  Act (each such  registration,  a
"Demand  Registration"),  for  public  sale in  accordance  with the  method  of
disposition  specified in such Demand Notice, the number of shares of Restricted
Stock  specified in such Demand  Notice (plus the number of shares of Restricted
Stock specified in any written requests for registration of shares of Restricted
Stock  that are  received  from  other  Investors  (other  than  the  requesting
Investors)  within 30 days after  receipt by such  other  Investors  of a Demand
Further Notice). Savvis shall not be obligated pursuant to this paragraph (a) to
file and cause to become effective more than two Demand Registrations.

         (b)  Additional  Short-Form  Registration  Rights.  If  Savvis  becomes
eligible to use Form S-3 or a successor  form,  Savvis shall use its  reasonable
best efforts to continue to qualify at all times for registration on Form S-3 or
such successor  form.  Subject to paragraph (j) below, if (x) Savvis is eligible
to register  shares of Savvis  Common Stock on Form S-3 or a successor  form and
(y) it is  requested  by any  Investor,  in a writing  that states the number of
shares of

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<PAGE>

Restricted Stock to be sold and the intended method of disposition thereof (each
such  written  request,  a  "Short  Form  Registration  Notice"),  to  effect  a
registration on Form S-3 or such successor form (a "Short Form Registration") of
all or any  portion  of the  Restricted  Stock  then  held  by  such  requesting
Investor, Savvis shall immediately notify in writing (each such notice, a "Short
Form Further  Notice") each other Investor (other than the requesting  Investor)
of such  proposed  registration  and shall use its  reasonable  best  efforts to
register on Form S-3 or such successor  form, for public sale in accordance with
the method of  disposition  specified  in such Short Form  Further  Notice,  the
number of shares of Restricted Stock specified in such Short Form Further Notice
(plus the number of shares of Restricted Stock specified in any written requests
for  registration  of shares of  Restricted  Stock that are received  from other
Investors  (other than the requesting  Investor) within 30 days after receipt by
such other Investors of a Savvis Short Form Registration  Notice);  provided, no
Investor  or group of  Investors  shall  have the right to  request a Short Form
Registration  unless the  proposed  aggregate  net  proceeds  to the  requesting
Investor(s)  (which shall be specified  in the Short Form  Registration  Request
delivered in connection therewith) exceeds $5,000,000.

         (c)   Certain   Provisions   Relating   to   Required    Registrations.
Notwithstanding  anything to the contrary  contained in this  Agreement,  Savvis
shall not be obligated to effect any  registration  under  paragraph  (a) or (b)
above except in accordance with the following provisions:

         (i) the  obligations of Savvis under paragraph (a) or (b) above, as the
     case may be, to effect a registration shall be deemed satisfied only when a
     registration  statement  covering  all of the  shares of  Restricted  Stock
     specified  in the  applicable  Demand  Notice  or Short  Form  Registration
     Notice, as the case may be, for sale in accordance with the intended method
     of  disposition  specified by the requesting  Investors,  shall have become
     effective  and,  if  such  method  of  disposition  is  a  firm  commitment
     underwritten  public  offering,  all such shares of Restricted  Stock shall
     have been sold pursuant thereto;

         (ii)  so  long  as  Savvis  has  provided  written  notice  of a  prior
     registration  statement to each Investor in compliance  with  paragraph (d)
     below,  Savvis shall not be obligated  under  paragraph (a) or (b) above to
     file and cause to become  effective any  registration  statement so long as
     such prior registration  statement (other than a registration  statement on
     Form S-4 or Form S-8 promulgated under the Securities Act (or any successor
     forms  thereto)  or any  other  form  not  available  for  registering  the
     Restricted Stock for sale to the public) pursuant to which shares of common
     stock of  Savvis  are to be (or were to be) sold to the  public  was  filed
     prior to the  delivery  of the  applicable  Demand  Notice  or  Short  Form
     Registration  Notice,  as the  case  may be (and  such  prior  registration
     statement has not been withdrawn);  provided, Savvis shall not be permitted
     to delay a  requested  registration  under  paragraph  (a) or (b)  above in
     reliance  on this  paragraph  (c)(ii)  more  than  180 days  following  the
     effective date of such prior registration statement;

         (iii) if the proposed method of disposition specified by the requesting
      Investors shall be an underwritten  public offering,  the number of shares
      of Restricted Stock to be included in such an offering may be reduced (pro
      rata  among the  Investors  seeking to  include  Restricted  Stock in such
      offering based on the number of shares of Restricted Stock

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     so requested to be registered by such Investors) if and to the extent that,
     in the good faith  opinion of the managing  underwriter  of such  offering,
     inclusion of all shares would  adversely  affect the marketing  (including,
     without limitation, the offering price) of the Restricted Stock to be sold;

         (iv) in the event that the proposed method of disposition  specified by
     the requesting  Investors shall be an underwritten public offering,  Savvis
     shall  choose  the  managing  underwriter  (which  shall  be  a  nationally
     recognized  investment  banking firm  reasonably  acceptable to the (A) the
     requesting Investors and (B) Investors holding a majority of the Restricted
     Stock being sold in such offering);

         (v) Savvis shall be entitled to include in any registration referred to
     in paragraph  (a) or (b) above,  as the case may be, for sale in accordance
     with the  method of  disposition  specified  by the  requesting  Investors,
     shares of common  stock of Savvis to be sold by Savvis for its own account,
     except  as  and  to the  extent  that,  in  the  opinion  of  the  managing
     underwriter  of such  offering (if such method of  disposition  shall be an
     underwritten  public  offering),  such inclusion would adversely affect the
     marketing  (including,  without  limitation,  the  offering  price)  of the
     Restricted Stock to be sold;

         (vi) except as  provided in  paragraph  (c)(v)  above,  Savvis will not
     effect any other  registration  of its common  stock,  whether  for its own
     account or that of other holder(s) of common stock of Savvis, from the date
     of  receipt  of a Demand  Notice  or the date of  receipt  of a Short  Form
     Registration Notice, as the case may be, until the completion of the period
     of distribution of the registration contemplated thereby;

         (vii) if any Investor  (other than the requesting  Investors)  requests
     that some or all of such Investor's  shares of Restricted Stock be included
     in an offering  initiated  pursuant to paragraph (a) or (b) above,  and the
     registration is to be, in whole or in part, an underwritten public offering
     of common  stock,  such request by such other  Investor  shall specify that
     such Investor's  Restricted  Stock is to be included in the underwriting on
     the same terms and conditions as the shares of Restricted  Stock  otherwise
     being sold through the underwriter; and

         (viii) if, while a registration is pending,  Savvis  determines in good
     faith  that the  filing  of a  registration  statement  would  require  the
     disclosure of a material  transaction  or another set of material facts and
     such  disclosure  would  either  have a  material  adverse  effect  on such
     material  transaction  or Savvis and its  subsidiaries  (taken as a whole),
     then  Savvis  shall not be required  to effect a  registration  pursuant to
     paragraph  (a) or (b) above,  as the case may be,  until the earlier of (A)
     the date upon which such material information is otherwise disclosed to the
     public or ceases to be  material  and (B) 90 days after  Savvis  makes such
     good faith determination;  provided, Savvis shall not be permitted to delay
     a requested  registration  under  paragraph (a) or (b) above in reliance on
     this  paragraph  (c)(viii) more than twice or for more than an aggregate of
     90 days in any consecutive twelve-month period.

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<PAGE>

         (d) Piggyback  Registration  Rights.  If at any time Savvis proposes to
register  any of its  common  stock  under  the  Securities  Act for sale to the
public, whether for its own account or for the account of other security holders
or both (other than a registration on Form S-4 or Form S-8 promulgated under the
Securities Act (or any successor  forms thereto) or any other form not available
for  registering  the  Restricted  Stock for sale to the  public),  it will give
written  notice  (each such  notice a  "Piggyback  Notice") at such time to each
Investor of its  intention to do so.  Subject to paragraph  (j) below,  upon the
written  request of any  Investor,  given  within 30 days after  receipt by such
holder of the Piggyback  Notice,  to register any of its Restricted Stock (which
request shall state the amount of Restricted  Stock to be so registered  and the
intended  method of disposition  thereof),  Savvis will use its reasonable  best
efforts to cause the Restricted Stock, as to which  registration shall have been
so requested, to be included in the securities to be covered by the registration
statement  proposed to be filed by Savvis, all to the extent requisite to permit
the sale or other  disposition by such Investor (in accordance  with its written
request) of such Restricted Stock so registered;  provided, nothing herein shall
prevent Savvis from abandoning or delaying such registration at any time. In the
event that any registration referred to in this paragraph (d) shall be, in whole
or in part,  an  underwritten  public  offering of common  stock of Savvis,  any
request by an Investor  pursuant to this  paragraph  (d) to register  Restricted
Stock shall specify either that (i) such  Restricted  Stock is to be included in
the underwriting on the same terms and conditions as the shares of Savvis common
stock otherwise being sold through  underwriters under such registration or (ii)
such Restricted Stock is to be sold in the open market without any underwriting,
on terms and conditions  comparable to those normally applicable to offerings of
common  stock in  reasonably  similar  circumstances.  The  number  of shares of
Restricted Stock to be included in such an underwritten  offering may be reduced
(pro rata  among the  requesting  Investors  based  upon the number of shares of
Restricted  Stock  so  requested  to be  registered  or pro rata  among  all the
requesting  stockholders  based  upon the  number of  shares of common  stock of
Savvis so requested to be registered if  stockholders  other than Investors also
request to be included) if and to the extent that the  managing  underwriter  of
such  offering  shall be of the good faith  opinion  that such  inclusion  would
adversely  affect the marketing  (including,  without  limitation,  the offering
price) of the securities to be sold by Savvis therein,  or by the other security
holders for whose benefit the registration statements has been filed.

         (e)  Holdback  Agreement.  Notwithstanding  anything  to  the  contrary
contained  in this  Agreement,  (i) if there is a firm  commitment  underwritten
public  offering of securities  of Savvis  pursuant to a  registration  covering
Restricted  Stock and an Investor does not elect to sell his Restricted Stock to
the underwriters of Savvis's  securities in connection with such offering,  such
Investor shall refrain from selling such  Restricted  Stock during the period of
distribution of Savvis's securities by such underwriters and the period in which
the  underwriting  syndicate  participates in the after market;  provided,  such
Investor  shall,  in any  event,  be  entitled  to  sell  its  Restricted  Stock
commencing  on the  180th  day after  the  effective  date of such  registration
statement;  and (ii) if there is a firm commitment  underwritten public offering
of securities  of Savvis by Savvis,  each  Investor  agrees that,  except to the
extent otherwise permitted to participate in such offering pursuant to paragraph
(d) above, upon the request of the managing  underwriter in such offering,  such
Investor  shall not sell Savvis  Common Stock held by such Investor for a period
of 180 days  from the  effective  date of the  registration  statement  relating
thereto.

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         (f) Certain Registration Procedures. If and whenever Savvis is required
by the provisions of this Section 3 to use its reasonable best efforts to effect
the  registration of Restricted  Stock under the Securities Act, Savvis will, as
expeditiously as possible:

         (i) prepare (and afford  counsel for the selling  Investors  reasonable
     opportunity  to review and comment  thereon) and file with the Commission a
     registration  statement  with  respect  to  such  securities  and  use  its
     reasonable best efforts to cause such registration  statement to become and
     remain  effective for the period of the distribution  contemplated  thereby
     (determined as hereinafter provided);

         (ii) prepare (and afford counsel for the selling  Investors  reasonable
     opportunity  to review and comment  thereon)  and file with the  Commission
     such  amendments  and  supplements to such  registration  statement and the
     prospectus  used in  connection  therewith as may be necessary to keep such
     registration   statement   effective   for  the   period  of   distribution
     contemplated  thereby  (determined as  hereinafter  provided) and as comply
     with the provisions of the  Securities Act with respect to the  disposition
     of  all  Restricted  Stock  covered  by  such  registration   statement  in
     accordance with the selling  Investors'  intended method of disposition set
     forth in such registration statement for such period;

         (iii)  furnish to each selling  Investor and to each  underwriter  such
     number of copies of the registration  statement and the prospectus included
     therein  (including,  without limitation,  each preliminary  prospectus) as
     such persons may reasonably  request in order to facilitate the public sale
     or other  disposition of the Restricted Stock covered by such  registration
     statement;

         (iv) use its  reasonable  best  efforts  to  register  or  qualify  the
     Restricted  Stock  covered  by  such   registration   statement  under  the
     securities  or blue  sky  laws  of such  jurisdictions  as the  sellers  of
     Restricted Stock or, in the case of an underwritten  public  offering,  the
     managing underwriter,  shall reasonably request;  provided, Savvis will not
     be  required to (x) qualify  generally  to do business in any  jurisdiction
     where it would not otherwise be required to qualify but for this  paragraph
     (iv),  (y)  subject  itself to  taxation  in any such  jurisdiction  or (z)
     consent to general service of process in any jurisdiction;

         (v) immediately  notify each selling  Investor under such  registration
     statement  and each  underwriter,  at any time when a  prospectus  relating
     thereto is  required  to be  delivered  under the  Securities  Act,  of the
     happening  of any event as a result of which the  prospectus  contained  in
     such  registration  statement,  as  then  in  effect,  includes  an  untrue
     statement of a material  fact or omits to state any material  fact required
     to be stated  therein  or  necessary  to make the  statements  therein  not
     misleading  in the  light  of the  circumstances  then  existing,  and each
     Investor  agrees to refrain from further using such prospectus upon receipt
     of such notice;

         (vi) use its reasonable best efforts (if the offering is  underwritten)
     to  furnish,  at the  request  of any  selling  Investor,  on the date that
     Restricted Stock is delivered to the

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<PAGE>

     underwriters for sale pursuant to such  registration:  (A) an opinion dated
     such  date  of  counsel  representing  Savvis  for  the  purposes  of  such
     registration,  addressed to the underwriters and to such selling  Investor,
     stating that such  registration  statement has become  effective  under the
     Securities Act and that (1) to the best knowledge of such counsel,  no stop
     order  suspending  the  effectiveness   thereof  has  been  issued  and  no
     proceedings  for that  purpose  have  been  instituted  or are  pending  or
     contemplated under the Securities Act, (2) the registration statement,  the
     related prospectus,  and each amendment or supplement thereof, comply as to
     form in all material  respects with the  requirements of the Securities Act
     and the  applicable  rules and  regulations  of the  Commission  thereunder
     (except  that  such  counsel  need  express  no  opinion  as  to  financial
     statements,  the  notes  thereto,  and the  financial  schedules  and other
     financial and  statistical  data  contained  therein) and (3) to such other
     effects as may reasonably be requested by counsel for the  underwriters  or
     by such selling  Investor or its counsel,  and (B) a letter dated such date
     from the independent  public accountants  retained by Savvis,  addressed to
     the  underwriters,  stating that they are  independent  public  accountants
     within the meaning of the  Securities  Act and that, in the opinion of such
     accountants,   the  financial   statements   of  Savvis   included  in  the
     registration  statement or the  prospectus,  or any amendment or supplement
     thereof,  comply as to form in all material  respects  with the  applicable
     accounting  requirements  of the  Securities  Act,  and such  letter  shall
     additionally  cover  such  other  financial  matters  (including,   without
     limitation,  information as to the period ending no more than five business
     days prior to the date of such letter) with respect to the  registration in
     respect of which such  letter is being given as such  underwriters  or such
     selling Investor may reasonably request; and

         (vii) make  available  for  inspection  by each selling  Investor,  any
     underwriter participating in any distribution pursuant to such registration
     statement,  and any attorney,  accountant  or other agent  retained by such
     selling Investor or underwriter, all financial and other records, pertinent
     corporate  documents and properties of Savvis, and cause Savvis's officers,
     directors and employees to supply all information  reasonably  requested by
     any such selling Investor,  underwriter,  attorney,  accountant or agent in
     connection  with  such  registration  statement  and  permit  such  selling
     Investor,  attorney,  accountant or agent to participate in the preparation
     of such registration statement.

For  purposes  of  paragraphs  (f)(i) and (f)(ii)  above (as well as  paragraphs
(c)(vi) and(e) above),  the "period of  distribution"  of Restricted  Stock in a
firm  commitment  underwritten  public  offering shall be deemed to extend until
each underwriter has completed the  distribution of all securities  purchased by
it, and the period of distribution of Restricted Stock in any other registration
shall be  deemed  to  extend  until  the sale of all  Restricted  Stock  covered
thereby,  but in either case,  such period shall not extend beyond the 180th day
(or, in the case of paragraph  (c)(vi) above,  the 90th day) after the effective
date of the registration statement filed in connection therewith.

         (g)  Information  From  Selling  Investors.  In  connection  with  each
registration  hereunder,  Investors  selling  Restricted  Stock will  furnish to
Savvis in writing such  information  with respect to themselves and the proposed
distribution  by them as  shall be  reasonably  necessary  in  order  to  assure
compliance with federal and applicable state securities laws.

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<PAGE>

         (h)  Underwriting   Agreement.  In  connection  with  any  registration
pursuant to this Section 3 that covers an underwritten  public offering,  Savvis
and  Investors  selling  Restricted  Stock  each  agree to enter  into a written
agreement with the managing  underwriter  selected in the manner herein provided
in such form and containing  such  provisions as are customary in the securities
business  for  such  an   arrangement   between  major   underwriters,   selling
stockholders and companies of Savvis' size and investment stature; provided, (i)
such agreement  shall not contain any such provision  applicable to Savvis which
is  inconsistent  with the provisions  hereof and (ii) the time and place of the
closing under said agreement  shall be as mutually agreed upon among Savvis such
managing  underwriter  and,  except in the case of a  registration  pursuant  to
paragraph (d) above,  Investors holding a majority of the Restricted Stock being
sold in such offering.

         (i) Expenses.  The Original  Registration  Rights Agreement will govern
the  payment  of all  Registration  Expenses  incurred  in  connection  with any
registration   of  the  February  2000  Common  Shares.   Savvis  will  pay  all
Registration  Expenses incurred in complying with Section 3 of this Agreement to
the extent such  expenses  relate to the  registration  of February  2001 Common
Shares. All Selling Expenses incurred in connection with any registered offering
of securities that, pursuant to this Section 3, includes Restricted Stock, shall
be borne by the participating sellers in proportion to the number of shares sold
by each, or by such persons other than Savvis (except to the extent Savvis shall
be a seller) as they may agree.  All  expenses  incident  to  performance  of or
compliance by Savvis with Section 3 hereof, including,  without limitation,  all
Commission,  stock exchange or National Association of Securities Dealers,  Inc.
("NASD") registration and filing fees (including,  without limitation,  fees and
expenses  incurred in connection  with the listing of the common stock of Savvis
on any securities  exchange or exchanges),  printing,  distribution  and related
expenses,  fees and disbursements of counsel and independent  public accountants
for Savvis,  all fees and expenses  incurred in connection  with compliance with
state  securities  or blue sky laws and the rules of the NASD or any  securities
exchange,  transfer  taxes  and fees of  transfer  agents  and  registrars,  but
excluding any Selling Expenses, are herein called "Registration  Expenses".  All
underwriting  discounts  and  selling  commissions  applicable  to the  sale  of
Restricted Stock are herein called "Selling Expenses".

         (j)  Availability of Rule 144(d).  Each Investor agrees that during any
period  in  which  such  Investor  is  eligible  to sell  all of its  shares  of
Restricted Stock pursuant to Rule 144(k), such Investor shall not be entitled to
invoke or otherwise  participate with respect to the registration rights granted
pursuant to paragraphs (a), (b) and (d) above.

         SECTION  4.  Indemnification  Rights  and  Obligations  In  Respect  of
Registered Offerings of Restricted Stock.

         (a)  Savvis  Indemnification  of Selling  Investors.  In the event of a
registration of any of the Restricted Stock under the Securities Act pursuant to
Section 3 of this Agreement, Savvis will indemnify and hold harmless each seller
of Restricted Stock thereunder and each other person,  if any, who controls such
seller within the meaning of the  Securities  Act,  against any losses,  claims,
damages or  liabilities,  joint or several,  (or actions in respect  thereof) to
which such seller or controlling  person may become subject under the Securities
Act or otherwise,

                                       9
<PAGE>

insofar as such losses,  claims,  damages or liabilities  (or actions in respect
thereof)  arise out of or are based upon any untrue  statement or alleged untrue
statement of any material fact  contained in any  registration  statement  under
which  such  Restricted  Stock was  registered  under the  Securities  Act,  any
preliminary  prospectus or final prospectus  contained therein, or any amendment
or supplement thereof, or arise out of or are based upon the omission or alleged
omission  to state  therein a material  fact  required  to be stated  therein or
necessary to make the statements therein not misleading, and will reimburse each
such  seller and each such  controlling  person for any legal or other  expenses
reasonably  incurred by them in connection with  investigating  or defending any
such loss,  claim,  damage,  liability or action;  provided,  Savvis will not be
liable in any such case if and to the extent that any such loss, claim,  damage,
liability  or  action  arises  out of or is based  upon an untrue  statement  or
alleged untrue  statement or omission or alleged  omission so made in conformity
with information  furnished by such seller or such controlling person in writing
specifically for use in such registration statement or prospectus.

         (b) Selling  Investor  Indemnification  of Savvis and the Other Selling
Stockholders.  In the event of a  registration  of any of the  Restricted  Stock
under the Securities Act pursuant to Section 3 of this Agreement, each seller of
such Restricted Stock thereunder,  severally and not jointly, will indemnify and
hold  harmless  Savvis and each person,  if any, who controls  Savvis within the
meaning of the Securities Act, each officer of Savvis who signs the registration
statement,  each  director  of  Savvis,  each  underwriter  and each  person who
controls  any  underwriter  within the meaning of the  Securities  Act, and each
other  seller of  Restricted  Stock and each person who  controls any such other
seller of Restricted Stock, against all losses,  claims, damages or liabilities,
joint or  several,  (or  actions in  respect  thereof)  to which  Savvis or such
officer or director or  underwriter  or other seller or  controlling  person may
become subject under the  Securities  Act or otherwise,  insofar as such losses,
claims,  damages or liabilities (or actions in respect  thereof) arise out of or
are based upon any untrue  statement or alleged untrue statement of any material
fact contained in the  registration  statement under which such Restricted Stock
was registered  under the Securities  Act, any  preliminary  prospectus or final
prospectus  contained therein,  or any amendment or supplement thereof, or arise
out of or are based upon the  omission or alleged  omission  to state  therein a
material fact required to be stated  therein or necessary to make the statements
therein  not  misleading,  and will  reimburse  Savvis  and each  such  officer,
director,  underwriter,  other seller of Restricted Stock and controlling person
for any legal or other expenses  reasonably  incurred by them in connection with
investigating or defending any such loss,  claim,  damage,  liability or action;
provided,  such seller will be liable  hereunder in any such case if and only to
the extent that any such loss, claim, damage,  liability or action arises out of
or is based upon an untrue  statement or alleged untrue statement or omission or
alleged  omission  made in  reliance  upon and in  conformity  with  information
pertaining  to such  seller,  as such,  furnished  in  writing to Savvis by such
seller  specifically  for  use in such  registration  statement  or  prospectus;
provided,  further,  the liability of each seller  hereunder shall be limited to
the proportion of any such loss,  claim,  damage,  liability or expense which is
equal to the  proportion  that the public  offering price of shares sold by such
seller under such  registration  statement  bears to the total  public  offering
price of all securities sold thereunder,  but not to exceed the proceeds (net of
underwriting discounts and commissions) received by such seller from the sale of
Restricted Stock covered by such registration statement.

                                       10
<PAGE>

         (c)   Indemnification   Procedures.   Promptly   after  receipt  by  an
indemnified  party hereunder of notice of the  commencement of any action,  such
indemnified party shall, if a claim in respect thereof is to be made against the
indemnifying party hereunder,  notify the indemnifying party in writing thereof,
but the omission so to notify the  indemnifying  party shall not relieve it from
any liability which it may have to any  indemnified  party other than under this
Section 4. In case any such  action  shall be brought  against  any  indemnified
party and it shall notify the indemnifying  party of the  commencement  thereof,
the indemnifying party shall be entitled to participate in and, to the extent it
shall  wish,  to  assume  and   undertake  the  defense   thereof  with  counsel
satisfactory to such indemnified  party, and, after notice from the indemnifying
party to such  indemnified  party of its election so to assume and undertake the
defense thereof,  the indemnifying party shall not be liable to such indemnified
party under this Section 4 for any legal expenses  subsequently incurred by such
indemnified  party in connection  with the defense thereof other than reasonable
costs of investigation and of liaison with counsel so selected; provided, if the
defendants  in any such  action  include  both  the  indemnified  party  and the
indemnifying  party and the indemnified  party shall have  reasonably  concluded
that there may be reasonable  defenses  available to it which are different from
or additional to those available to the indemnifying  party, or if the interests
of the indemnified party reasonably may be deemed to conflict with the interests
of the indemnifying  party, the indemnified party shall have the right to select
a  separate  counsel  and  to  assume  such  legal  defenses  and  otherwise  to
participate  in the defense of such  action,  with the expenses and fees of such
separate  counsel  and  other  expenses  related  to  such  participation  to be
reimbursed by the indemnifying party as incurred. Notwithstanding the foregoing,
any indemnified party shall have the right to retain its own counsel in any such
action,  but the fees and  disbursements of such counsel shall be at the expense
of such indemnified party unless (i) the indemnifying party shall have failed to
retain counsel for the indemnified  person as aforesaid or (ii) the indemnifying
party and such indemnified  party shall have mutually agreed to the retention of
such  counsel.  It is  understood  that the  indemnifying  party  shall not,  in
connection  with any action or  related  actions  in the same  jurisdiction,  be
liable for the fees and  disbursements  of more than one separate firm qualified
in  such  jurisdiction  to  act  as  counsel  for  the  indemnified  party.  The
indemnifying  party  shall not be liable for any  settlement  of any  proceeding
effected  without its written  consent,  but if settled  with such consent or if
there be a final judgment for the plaintiff,  the  indemnifying  party agrees to
indemnify the indemnified party from and against any loss or liability by reason
of such settlement or judgment. The indemnification of underwriters provided for
in this Section 4 shall be on such other terms and conditions as are at the time
customary  and  reasonably  required  by such  underwriters.  In that  event the
indemnification of the sellers of Restricted Stock in such underwriting shall at
the sellers' request be modified to conform to such terms and conditions.

         (d) Contribution. If the indemnification provided for in paragraphs (a)
and (b) of this Section 4 is  unavailable  or  insufficient  to hold harmless an
indemnified  party  under such  paragraphs  in respect  of any  losses,  claims,
damages or liabilities or actions in respect thereof  referred to therein,  then
each  indemnifying  party shall in lieu of indemnifying  such indemnified  party
contribute to the amount paid or payable by such  indemnified  party as a result
of such losses,  claims,  damages,  liabilities or actions in such proportion as
appropriate  to reflect the relative  fault of Savvis,  on the one hand, and the
underwriters  and the  sellers  of  such  Restricted  Stock,  on the  other,  in
connection  with the  statements  or  omissions  which  resulted in such losses,
claims, damages,  liabilities or actions as well as any other relevant equitable
considerations,

                                       11
<PAGE>

including,  without  limitation,  the failure to give any notice under paragraph
(c) above.  The relative  fault shall be determined by reference to, among other
things,  whether  the  untrue or alleged  untrue  statement  of a material  fact
relates to information  supplied by Savvis, on the one hand, or the underwriters
and the sellers of such  Restricted  Stock,  on the other,  and to the  parties'
relative intent, knowledge,  access to information and opportunity to correct or
prevent such  statement or omission.  Savvis and each of you agree that it would
not be just and  equitable  if  contributions  pursuant to this  paragraph  were
determined by pro rata allocation (even if all of the sellers of such Restricted
Stock were  treated as one entity for such  purpose)  or by any other  method of
allocation which did not take account of the equitable  considerations  referred
to above in this paragraph.  The amount paid or payable by an indemnified  party
as a result of the losses,  claims,  damages,  liabilities  or action in respect
thereof,  referred  to above in this  paragraph,  shall be deemed to include any
legal  or  other  expenses  reasonably  incurred  by such  indemnified  party in
connection   with   investigating   or  defending  any  such  action  or  claim.
Notwithstanding the provisions of this paragraph, the sellers of such Restricted
Stock shall not be required to contribute any amount in excess of the amount, if
any, by which the total price at which the Restricted Stock sold by each of them
was offered to the public  exceeds  the amount of any  damages  which they would
have  otherwise  been required to pay by reason of such untrue or alleged untrue
statement or omission. No person guilty of fraudulent misrepresentations (within
the  meaning of Section  11(f) of the  Securities  Act),  shall be  entitled  to
contribution   from  any   person   who  is  not   guilty  of  such   fraudulent
misrepresentation.

         SECTION 5. Rule 144.  Savvis has filed and  agrees  with the  Investors
that  from and  after  the date  hereof  it shall  continue  to file any and all
reports required to be filed by it under the Securities Act and the Exchange Act
and the rules and  regulations  adopted  by the  Commission  thereunder,  or, if
Savvis is not  required  to file any such  reports,  it shall,  upon the written
request  of  any  Investor,  make  publicly  available  such  information  as is
necessary to permit sales  pursuant to Rule 144 under the  Securities  Act. Upon
the written  request of any  Investor,  Savvis  shall  promptly  furnish to such
Investor a written  statement by Savvis as to its compliance  with the reporting
requirements set forth in this Section 5.

         SECTION 6. Duration of Agreement.  This Agreement shall survive so long
as any Investor owns Restricted Stock.

         SECTION 7. Representations and Warranties. Each party hereto, severally
and not jointly, represents and warrants to the other parties hereto as follows:

         (i) such party has the corporate or partnership power and authority, as
     the case may be, to execute and deliver this  Agreement  and to perform its
     obligations  hereunder.  The  execution,  delivery and  performance by such
     party  of  this  Agreement  have  been  duly  authorized  by all  requisite
     corporate or  partnership  action,  as the case may be, on the part of such
     party and will not (i) violate any provision of law, any order of any court
     or other  agency  of  government,  the  charter  and  other  organizational
     documents of such party,  or any provision of any  indenture,  agreement or
     other  instrument by which such party or any of such party's  properties or
     assets is bound;  (ii) conflict  with,  result in a breach of or constitute
     (with  due  notice  or  lapse  of time or both) a  default  under  any such
     indenture,  agreement or other instrument;  or (iii) result in the

                                       12
<PAGE>

     creation or imposition  of any lien,  charge or  encumbrance  of any nature
     upon any of the properties or assets of such party; and

         (ii) this  Agreement has been duly executed and delivered by such party
     and  constitutes  a legal,  valid  and  binding  agreement  of such  party,
     enforceable against such party in accordance with its terms, subject, as to
     enforcement   of   remedies,   to   applicable   bankruptcy,    insolvency,
     reorganization,  moratorium  and  similar  laws from time to time in effect
     affecting the  enforcement  of creditors'  rights  generally and to general
     principles of equity.

         SECTION 8. Miscellaneous.

         (a) Additional  Registration  Rights.  Without the consent of Investors
holding at least a majority of the shares of Restricted Stock then  outstanding,
Savvis  shall not grant any  registration  rights to any other  person  that are
inconsistent or conflict with the registration rights granted hereunder.

         (b) Headings. Headings of sections and paragraphs of this Agreement are
inserted  for   convenience   of  reference   only  and  shall  not  affect  the
interpretation or be deemed to constitute a part hereof.

         (c)  Severability.  In the event that any one or more of the provisions
contained in this Agreement or in any other instrument referred to herein shall,
for  any  reason,  be  held  to  be  invalid,  illegal  or  unenforceable,  such
invalidity, illegality or unenforceability shall not affect any other provisions
of this Agreement.

         (d) Benefits of  Agreement.  All  covenants  and  agreements  contained
herein by or on behalf of any of the parties  hereto shall bind and inure solely
and  exclusively  to the  benefit of the  respective  successors  and  permitted
assigns of the  parties  hereto.  Except as  expressly  permitted  hereby,  each
party's  rights and  obligations  under this  Agreement  shall not be subject to
assignment or delegation  by any party hereto,  and any attempted  assignment or
delegation in violation hereof shall be null and void.

         (e)  Entire  Agreement;  Modification.  This  Agreement,  the  Original
Registration  Rights Agreement and the Purchase Agreement  constitute the entire
agreement  of the  parties  with  respect to the  subject  matter  hereof.  This
Agreement  may not be modified or amended  except by a writing  signed by Savvis
and the Investors  holding at least a majority of the shares of Restricted Stock
then  outstanding.  Any waiver of any provision of this  Agreement  must be in a
writing signed by the party against whom enforcement of such waiver is sought.

         (f) Notices. Any notice or other  communications  required or permitted
hereunder shall be deemed to be sufficient if contained in a written  instrument
delivered in person or duly sent by national overnight courier service, by first
class certified mail, postage prepaid,  or by facsimile (followed by delivery by
overnight  courier)  addressed to such party at the address or facsimile  number
set forth below:

                                       13
<PAGE>

         (i) if to Savvis or any WCAS Person,  to it at the address or facsimile
     number set forth for such party on the signature page hereto: and

         (ii) if to any subsequent Investor, to such Investor at such address or
     facsimile  number as may have been furnished to the other parties hereto in
     writing by such holder;

or, in any case,  at such other  address or facsimile  number as shall have been
furnished  in  writing  by such  party to the  other  parties  hereto.  All such
notices,  requests,  consents and other  communications  shall be deemed to have
been  received (1) in the case of personal or courier  delivery,  on the date of
such delivery,  (2) in the case of mailing,  on the fifth business day following
the date of such mailing and (3) in the case of facsimile, when received.

         (g)  Counterparts.  This  Agreement  may be  executed  in any number of
counterparts, and each such counterpart hereof shall be deemed to be an original
instrument,  but  all  such  counterparts  together  shall  constitute  but  one
agreement.

         (h) Changes in Common  Stock of Savvis.  If, and as often as, there are
any changes in the common stock of Savvis by way of stock split, stock dividend,
combination   or   reclassification,    or   through   merger,    consolidation,
reorganization  or  recapitalization,   or  by  any  other  means,   appropriate
adjustment shall be made in the provisions hereof as may be required so that the
rights  and  privileges  granted  hereby  shall  continue  with  respect  to the
Restricted Stock as so changed.

         (i) Specific Performance. Each party hereto agrees that a remedy at law
for any breach or  threatened  breach by such party of this  Agreement  would be
inadequate and therefore agrees that any other party hereto shall be entitled to
specific performance of this Agreement in addition to any other available rights
and remedies in case of any such breach or threatened breach.

         (j) GOVERNING LAW. THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE  WITH  THE LAWS OF THE  STATE  OF NEW  YORK,  WITHOUT  REGARD  TO THE
CONFLICTS OF LAWS PROVISIONS THEREOF.

                                    * * * * *

                                       14
<PAGE>

                  IN  WITNESS  WHEREOF,  each of the  parties  hereto  has  duly
executed  and  delivered  this  Agreement  as of the day and  year  first  above
written.

                                         SAVVIS COMMUNICATIONS CORPORATION

                                         By     /s/ Steven M. Gallant
                                           ________________________________
                                         Name:  Steven M. Gallant
                                         Title: Vice President-General Counsel

                                         Address:   12851 World Gate Drive
                                                    Herndon, VA 20170
                                         Attention: Nancy Lysinger
                                         Facsimile: (703) 453-6999

                                         WELSH, CARSON, ANDERSON
                                             & STOWE VIII, L.P.
                                         By WCAS VIII Associates LLC,
                                             General Partner

                                         By     /s/ Jonathan M. Rather
                                           ________________________________
                                         Name:  Jonathan M. Rather
                                         Title: Managing Member

                                         Address:   320 Park Avenue, Suite 2500
                                                    New York, NY 10022
                                         Attention: Mr. John D. Clark
                                         Facsimile: (212) 893-9575

                                       15
<PAGE>

                                         Russel Carson
                                         Bruce K. Anderson
                                         Andrew Paul
                                         Robert A. Minicucci
                                         Anthony J. De Nicola
                                         Paul B. Queally
                                         Lawrence Sorrel
                                         Rudolph Rupert
                                         D. Scott Mackesy
                                         Sanjay Swani
                                         James R. Mathews
                                         John D. Clark
                                         Sean Traynor
                                         John Almeida
                                         Eric J. Lee
                                         Jonathan M. Rather

                                         By:/s/ Jonathan M. Rather
                                          -----------------------------------
                                         Jonathan M. Rather
                                         Individually and as Attorney-in-Fact

                                         Address:   320 Park Avenue, Suite 2500
                                                    New York, NY 10022
                                         Attention: Mr. Jonathan M. Rather
                                         Facsimile: (212) 893-9575

                                       16
<PAGE>

                                         WCAS MANAGEMENT CORPORATION

                                         By: /s/ Jonathan M. Rather
                                           ________________________________
                                         Name: Jonathan M. Rather
                                         Title:Treasurer

                                         Address:   320 Park Avenue, Suite 2500
                                                    New York, NY 10022
                                         Attention: Mr. Jonathan M. Rather
                                         Facsimile: (212) 893-9575

                                       17EXHIBIT 10.42

          MISSOURI FUTURE ADVANCE DEED OF TRUST AND SECURITY AGREEMENT

         THIS  MISSOURI  FUTURE  ADVANCE  DEED OF TRUST AND  SECURITY  AGREEMENT
SECURES FUTURE ADVANCES AND FUTURE  OBLIGATIONS AND SHALL BE GOVERNED BY SECTION
443.055  R.S.MO.,  AS  AMENDED.  THE TOTAL  PRINCIPAL  AMOUNT OF THE PRESENT AND
FUTURE ADVANCES AND OBLIGATIONS WHICH MAY BE SECURED HEREBY IS $50,000,000.00

         THIS MISSOURI FUTURE ADVANCE DEED OF TRUST AND SECURITY AGREEMENT (this
"Deed of Trust") is made as of the 19th day of  February,  2001,  by and between
SAVVIS COMMUNICATIONS  CORPORATION, a Missouri corporation (whether one or more,
collectively  called  "Grantor") having a mailing address of 795 Office Parkway,
St. Louis, Missouri 63141 and Steven D. Korenblat, as trustee ("Trustee") having
a mailing  address  of Bryan  Cave LLP,  One  Metropolitan  Square,  St.  Louis,
Missouri  63102,  and WELSH,  CARSON,  ANDERSON & STOWE  VII,  L.P.,  a Delaware
limited partnership,  as beneficiary ("Beneficiary") having a mailing address of
320 Park Avenue, Suite 2500, New York, NY 10022.

                                  WITNESSETH:

         WHEREAS,  Savvis  Communications  Corporation,  a Delaware  Corporation
("Borrower") is justly  indebted to  Beneficiary,  as evidenced by those certain
notes  dated   February  19,  2001  in  the   aggregate   principal   amount  of
$20,000,000.00  (the "Convertible  Senior Secured Notes") and issued by Borrower
pursuant to a Securities  Purchase Agreement dated as of February 16, 2001 among
Borrower,  Beneficiary and WCAS Management Corporation ("WCAS"), as amended from
time to time ("Securities Purchase Agreement");

         WHEREAS,  Beneficiary  and WCAS  will  not  enter  into the  Securities
Purchase Agreement and will not provide to Borrower the funds contemplated to be
provided  under the  Securities  Purchase  Agreement  unless  and until  Grantor
delivers to  Beneficiary  and  Beneficiary  receives  from  Grantor this Deed of
Trust; and

         WHEREAS,  Grantor is a wholly  owned  subsidiary  of  Borrower  and has
determined  that it is in the best  interest of Grantor for  Borrower to receive
the funds contemplated under the Securities  Purchase Agreement and acknowledges
that Grantor is effecting the grant of this Deed of Trust in consideration  for,
and has  received  value for the grant  hereunder  as a result  of,  the loan by
Beneficiary  and WCAS to Borrower  contemplated  under the  Securities  Purchase
Agreement; and

         WHEREAS,   to  induce   Beneficiary  and  WCAS  to  provide  the  funds
contemplated to be delivered under the Securities Purchase Agreement, Grantor is
willing to deliver this Deed of Trust to Beneficiary; and

         WHEREAS,  the parties  intend  that this  conveyance  shall  secure the
performance and payment of the covenants,  sums, and obligations of the Borrower
under the provisions of the Convertible Senior Secured Notes and all extensions,
renewals or  modifications  of all or part of said  Convertible  Senior  Secured
Notes and any  additional  notes that may be issued  according  to the terms set
forth in the Securities Purchase Agreement  (hereinafter said Convertible Senior
Secured  Notes,  any such  additional  notes  and any  renewals,  extensions  or
modifications  thereof are referred to as the "Notes"),  and all  obligations of
Grantor now or hereafter owing to Beneficiary  including any additional  amounts
which  Beneficiary  may be permitted to advance now or hereafter to preserve and
protect the lien and  encumbrance  hereof or according to the terms of this Deed
of Trust (collectively, the "Indebtedness"). THIS DEED OF TRUST IS A MORTGAGE OF
INTERESTS IN IMPROVEMENTS ONLY AND

<PAGE>

SECURES FUTURE  ADVANCES AND FUTURE  OBLIGATIONS  PURSUANT TO SECTION 443.055 OF
THE MISSOURI REVISED STATUTES. THE TOTAL PRINCIPAL AMOUNT OF THE FUTURE ADVANCES
AND FUTURE  OBLIGATIONS  WHICH MAY BE SECURED  HEREBY IS FIFTY  MILLION  DOLLARS
($50,000,000.00);

         NOW THEREFORE,  as security for the Indebtedness,  and in consideration
thereof,  and the sum of Ten Dollars  ($10.00) in hand paid,  and for other good
and  valuable  consideration,  the receipt and  sufficiency  of which are hereby
acknowledged,  Grantor by these  presents does hereby  REMISE,  RELEASE AND QUIT
CLAIM,  unto  Trustee,  his  successors  and  assigns,  IN TRUST,  forever,  the
Grantor's  interest,  if any, in (1) all buildings,  improvements and structures
present as of the date of this Deed of Trust on that  certain  land  situated in
the County of St.  Louis,  State of Missouri as more  particularly  described in
Exhibit A attached hereto and incorporated herein by this reference (the "Land")
and  constructed  by or on behalf of Grantor  pursuant  to or  substantially  in
accordance  with  the  plans  and  specifications  dated  September  9, 1999 and
prepared by Rivkin/Weisman, P.C. and ACI Boland, Inc. for the project located at
Phantom  Drive  and J.  S.  McDonnel  Boulevard,  Hazelwood,  Missouri  and  all
buildings, improvements and structures hereafter, erected, situated or placed at
any time by or on behalf of Grantor on the Land  (collectively,  "Buildings" and
individually "Building");  and (2) the fee simple title to all or any portion of
the Land (collectively, the "Mortgaged Property").

         Notwithstanding the foregoing, the Mortgaged Property shall not include
any or all of the following:

         (a) furniture,  fixtures,  equipment and personal  property,  including
without  limitation,  replacements and  substitutions  therefor,  and all leases
thereof  and all rents,  revenues,  income,  profits,  royalties,  deposits  and
proceeds  therefrom,  now  or  hereafter  owned  or  leased  (i)  by GE  Capital
Corporation  or by  any  one or  more  third  party  lessors,  their  respective
successors  and  assigns,  and leased to Grantor or Bridge  Information  Systems
America,  Inc., a Delaware  corporation,  as lesee,  whether  under an operating
lease, a capital lease or a synthetic lease, and/or (ii) by Grantor,  any person
or entity  occupying  or  using any part of the  Building by or through  Grantor
(or its lessees,  successors or assigns)  and/or any person or entity holding an
ownership or security interest in any Excluded Property;

         (b) any subleases of any properties  described in (a) of this paragraph
to Grantor, its successors and assigns, as sublessee;

         (c) all furniture, fixtures, equipment and personal property, including
without  limitation,  replacements and  substitutions  therefor,  and all leases
thereof  and all rents,  revenues,  income,  profits,  royalties,  deposits  and
proceeds  therefrom  subject to a security  interest  granted by, or that either
Grantor or  Borrower  is  obligated  to grant,  in either  case,  pursuant  to a
security agreement or an other agreement effective prior to or as of the date of
this Deed of Trust;

         (d) all real,  personal,  tangible and intangible  property of any kind
that  is in any way  pledged  pursuant  to any of the  agreements  described  on
Exhibit  B  attached  hereto  and  incorporated  into this Deed of Trust by this
reference; and

         (e) all real,  personal,  tangible and intangible  property of any kind
that is in any way encumbered by that certain first deed of trust by Bridge Data
Company, a Delaware corporation ("Bridge")  in favor of Harris Trust and Savings
Bank  dated  July  28,  2000  (the  "First  Deed of  Trust")  and any  renewals,
modifications, replacements, and extensions of such First Deed of Trust

all of the foregoing being the ("Excluded  Property").  The Excluded Property is
not a part of the  Mortgaged  Property for any purpose under this Deed of Trust.
Upon the from time to time request of

                                       2

<PAGE>

Grantor,   Beneficiary   will  execute  and  deliver  to  Grantor  such  written
confirmations of the foregoing to the extent Grantor  reasonably deems necessary
and appropriate.

         TO HAVE AND TO HOLD the Mortgaged  Property and every part thereof unto
Trustee, his successors and assigns, forever, IN TRUST,  nevertheless, to secure
the payment of the Indebtedness and the performance and observance by Grantor of
every covenant and condition herein contained.

COVENANTS.  Grantor  hereby  expressly  covenants  and agrees  with  Trustee and
Beneficiary that:

         (1)  PERFORMANCE OF  OBLIGATIONS.  Grantor will duly perform all of its
              obligations  under this Deed of Trust in accordance with the terms
              hereof.

         (2)  DUE ON SALE OR  ENCUMBRANCE.  Grantor will not,  without the prior
              written consent of Beneficiary, transfer, convey or otherwise part
              with  title  to any  of the  Mortgaged  Property,  or any  portion
              thereof  or  ownership  interest  therein,  or create or permit or
              allow to exist  or to be  created  any  mortgage,  deed of  trust,
              pledge  or  other  lien  or  encumbrance  on any of the  Mortgaged
              Property,  other  than this Deed of Trust,  and  Grantor  will not
              suffer or permit any mechanic's or materialmen's lien or any other
              lien of any nature  whatsoever  to attach to any of the  Mortgaged
              Property  or to remain  outstanding  against  the same or any part
              thereof.  Beneficiary  hereby  consents  to  arrangements  between
              Grantor and a third party  providing for (i) the  installation  in
              the Building of communications  and/or computer equipment owned or
              leased by third parties (including  communications and/or computer
              equipment  leased by  Grantor  to such  third  parties)  to enable
              Grantor to provide such third parties with broadband  connectivity
              to the  internet,  IP VPN  services,  and/or  all other  internet,
              intranet and extranet  facilities  and equipment  and/or  services
              then  currently   being   provided  by  Grantor;   (ii)  the  use,
              maintenance,  repair, and operation of such communications  and/or
              computer  equipment by such third parties  and/or by Grantor;  and
              (iii) a grant by  Grantor  to such  third  parties of the right to
              have actual  and/or  virtual  access to the  Building  and to such
              communications and/or computer equipment (each such third party is
              a  "Co-location   Party";  the  equipment  of,  owned,  leased  or
              otherwise  belonging to the Co-location  Party is the "Co-location
              Equipment" and the arrangements  between Grantor and a Co-location
              Party   consistent  with  (i)-(iii)  above  being  the  "Permitted
              Co-location   Arrangements").   Notwithstanding   the   foregoing,
              Permitted Co-location  Arrangements may be effected whether or not
              Grantor  provides  managed  hosting  services  to the  Co-location
              Party.

         3.   INSURANCE.   Until  this  Deed  of  Trust  has  been  released  in
              accordance  with  Paragraph 17 below,  Grantor shall  maintain the
              following  insurance and otherwise  comply with the  provisions of
              this Section (3):

                    (i) Grantor shall provide and  maintain,  at Grantor's  sole
              cost and expense  throughout  the  duration of this Deed of Trust,
              commercial   general   liability   insurance,   including  blanket
              contractual  liability  coverage (or its equivalent)  specifically
              endorsed  to  provide  coverage  for the  obligations  assumed  by
              Grantor  pursuant  to  this  Deed of  Trust,  against  claims  and
              liability for personal injury,  bodily injury,  death, or property
              damage  occurring  on, in, or about the Mortgaged  Property,  with
              limits  of  liability  of  not  less  than  Five  Million  Dollars
              ($5,000,000.00) for liability arising out of any one occurrence.

                    (ii) insurance  insuring  Grantor  against loss or damage to
              the  Mortgaged  Property  by  fire,  lightning,  windstorm,  hail,
              explosion, aircraft, smoke, vandalism, malicious mischief, vehicle
              damage  and  other  risks  from time to time  included  under a so
              called  "Special  Form Causes of Loss" policy (or its  equivalent)
              together with earthquake and, if the Mortgaged Property is located
              in a  HUD-identified flood hazard area,  flood  insurance and such
              other similar policies as

                                       3

<PAGE>

              Beneficiary  may  reasonably  require  to  protect  the  Mortgaged
              Property.  Such  insurance  shall  provide coverage  in an  amount
              sufficient to prevent  Grantor from being a co-insurer of any loss
              under the  policy or  policies,  but in no event less than 100% of
              the full replacement cost of the improvements;

                    (iii) At all times during the duration of this Deed of Trust
              when  fuel  tanks  are  located  at or on any  land on  which  any
              Building is  constructed,  Grantor shall maintain so called "Above
              Ground Storage Tank Third Party  Liability and Cleanup"  insurance
              or its  equivalent.  Notwithstanding  anything to the  contrary in
              this Deed of Trust, such insurance shall be on a claims made basis
              with a per  occurrence  limit  of at  least  One  Million  Dollars
              ($1,000,000) and a general aggregate limit of at least One Million
              Dollars ($1,000,000)  with  reasonable  deductibles and reasonable
              coverage for defense costs.

              All of the  foregoing  insurance  will be issued  by an  insurance
              company of  recognized  financial  standing  having at least an A+
              rating by Best Insurance  Reports.  Said policies shall be in form
              as are reasonably  acceptable to and approved by Beneficiary.  All
              such insurance policies are assigned to and are to be held by and,
              to the extent of its  interest,  for the benefit of and payable in
              case of loss to the  Beneficiary,  and  Grantor  will  deliver  to
              Beneficiary  such  policies,  marked  "Paid",  and new policies as
              replacement  for any expiring  policies at least fifteen (15) days
              before the date of such expiration. All such policies of insurance
              shall have attached the standard  non-contributory first mortgagee
              clause  or  its   equivalent   in  favor  of   Beneficiary,   with
              cancellation  only upon at least  fifteen (15) days' prior written
              notice to Beneficiary.  Grantor shall obtain written certification
              from the appropriate  governmental  authority as to whether or not
              the All amounts  recoverable  under any such  policies or to which
              Grantor  is  otherwise  entitled  from  third  parties  are hereby
              assigned  to  Beneficiary  and,  in  the  event  of a  loss,  each
              insurance company or other third party concerned is authorized and
              directed  to make  payment for such loss  directly to  Beneficiary
              alone and Beneficiary is hereby authorized to adjust,  compromise,
              receive,   collect  and  sue  for  the  same  and  Grantor  hereby
              authorizes   and  directs  that  such  sum  or  sums  be  paid  to
              Beneficiary  upon  presentation  of a duly  certified copy hereof.
              Beneficiary is further  authorized to endorse  Grantor's name upon
              any  check in  payment  of loss.  All loss  proceeds  received  by
              Beneficiary  shall be applied as follows:  (i) first,  to fund the
              replacement,   repair  and  restoration  to  and/or  the Mortgaged
              Property  taken or  injured  if  Grantor  elects  to  effect  such
              replacement,  repair and/or restoration,  (ii) next, any remaining
              funds to be applied against the Indebtedness secured hereby to the
              extent  then  due  and  unpaid  without  the  application  of  any
              prepayment  penalty  and  applied to  principal  and  interest  as
              provided in the Notes,  and (iii) next, any remaining  funds to be
              paid to Grantor. All of the policies of insurance shall be held by
              Beneficiary as additional  security and, in the event of a sale of
              the Mortgaged  Property  upon  foreclosure,  all right,  title and
              interest  of Grantor in and to such  policies of  insurance  shall
              pass  to the  purchaser  at  such  sale  and  Grantor  irrevocably
              appoints  Beneficiary as attorney-in-fact of Grantor to assign any
              policies or proceeds thereof to such purchaser.

              The  following  notice is provided  pursuant  to Section  427.120,
              R.S.Mo.  As used  herein,  "you"  means  Grantor  and  "we"  means
              Beneficiary: UNLESS YOU PROVIDE EVIDENCE OF THE INSURANCE COVERAGE
              REQUIRED BY YOUR AGREEMENT  WITH US, WE MAY PURCHASE  INSURANCE AT
              YOUR  EXPENSE TO PROTECT OUR  INTERESTS IN YOUR  COLLATERAL.  THIS
              INSURANCE MAY, BUT NEED NOT, PROTECT YOUR INTERESTS.  THE COVERAGE
              THAT WE PURCHASE  MAY NOT PAY ANY CLAIM THAT YOU MAKE OR ANY CLAIM
              THAT IS MADE AGAINST YOU IN CONNECTION  WITH THE  COLLATERAL.  YOU
              MAY LATER  CANCEL ANY  INSURANCE  PURCHASED  BY US, BUT ONLY AFTER
              PROVIDING EVIDENCE THAT YOU HAVE OBTAINED INSURANCE AS REQUIRED BY
              OUR AGREEMENT.  IF WE PURCHASE  INSURANCE FOR THE COLLATERAL,  YOU
              WILL BE RESPONSIBLE FOR THE COSTS OF THAT INSURANCE, INCLUDING THE
              INSURANCE PREMIUM, INTEREST AND ANY OTHER CHARGES WE MAY IMPOSE IN
              CONNECTION WITH THE PLACEMENT OF THE INSURANCE,

                                       4

<PAGE>

              UNTIL THE EFFECTIVE DATE OF THE  CANCELLATION OR EXPIRATION OF THE
              INSURANCE.  THE COSTS OF THE  INSURANCE MAY BE ADDED TO YOUR TOTAL
              OUTSTANDING BALANCE OR OBLIGATION.  THE COSTS OF THE INSURANCE MAY
              BE MORE  THAN THE COST OF  INSURANCE  YOU MAY BE ABLE TO OBTAIN ON
              YOUR OWN.

         (4)  INDEMNITY.  Grantor  will  protect,  indemnify,  defend  and  hold
              harmless  Trustee  and  Beneficiary  from and  against any and all
              claims, causes of action,  suits,  liabilities,  damages,  losses,
              costs  and  expenses  (including  attorneys'  fees),  of  whatever
              nature,  which may arise or  result,  directly  or  indirectly  by
              reason of the use or occupation  of the Mortgaged  Property or any
              part  thereof  or any  failure  by  Grantor  to  comply  with  the
              covenants contained herein.

         (5)  REPAIRS.  Grantor  will  at  all  times  keep and   maintain  the
              Mortgaged  Property and every part  thereof in good order,  repair
              and condition,  without any liability of Trustee or Beneficiary to
              any  person  for  damage  for  failure  to repair or for any other
              cause,  and  Grantor  will  promptly  make all  needed  and proper
              repairs, restorations,  renewals and replacements thereof, so that
              at all times the value of the  Mortgaged  Property  and every part
              thereof shall be fully preserved and maintained,  and Grantor will
              not cause or permit any waste on or of the  Mortgaged  Property or
              otherwise allow the Mortgaged  Property,  or any part thereof,  to
              depreciate in value by any act or neglect.

         (6)  COMPLIANCE.  Grantor  will not use or  suffer or permit to be used
              the  Mortgaged   Property  or  any  part  thereof  in  any  manner
              inconsistent with the rights of Trustee or Beneficiary  hereunder,
              or in violation of the  provisions of any insurance  policy or any
              rules or  regulations  of insurance  underwriters, and will comply
              with, and maintain, use and cause the Mortgaged Property to at all
              times  be  in  compliance  with  all  laws,   ordinances,   rules,
              regulations, orders and directions of any legislative,  executive,
              administrative or judicial body, officer or department  applicable
              to the Mortgaged Property or to the uses or purposes thereof.

         (7)  CONDEMNATION. In  the  event  the  Mortgaged Property, or any part
              thereof, be taken through condemnation proceedings or by virtue of
              the  exercise  of the  right of  eminent  domain  or  pursuant  to
              governmental  action,  any and all  amounts  awarded  in any  such
              condemnation  proceeding for the taking of the Mortgaged Property,
              or any part thereof,  are hereby  assigned to and shall be paid to
              Beneficiary, and when received by Beneficiary, shall be applied as
              follows:   (i)  first,  to  fund  the   repalcement,   repair  and
              restoration  to and/or of the Mortgaged  Property taken or injured
              if  Grantor  elects  to effect  such  replacement,  repair  and/or
              restoration,  (ii) next, any remaining funds to be applied against
              the Indebtedness  secured hereby to the extent then due and unpaid
              without the  application of any prepayment  penalty and applied to
              principal  and interest as provided in the Notes,  and (iii) next,
              any remaining funds to be paid to Grantor.

         (8)  SEVERABILITY.  To the  extent  that any grant  under  this Deed of
              Trust  violates the terms of any other  agreement to which Grantor
              is a party as of the date of this Deed of Trust,  such Grant shall
              be deemed  severed  from this Deed of Trust and shall be deemed to
              be null and void and of no force or  effect as of the date of this
              Deed of Trust and the remainder of this Deed of Trust shall remain
              in full force and effect to extent  permitted by law and this Deed
              of Trust shall be deemed  amended as appropriate to give effect to
              such severance.

         (9)  TAXES.  Grantor  hereby  covenants  and  agrees to pay any and all
              taxes, assessements, liens and other charges that may be levied or
              assessed  against the  Mortgaged  Property,  or any part  thereof,
              prior to the time the same shall  become  delinquent,  and Grantor
              shall promptly provide Beneficiary with proof of payment thereof.

         (10) CHANGE IN TAXATION  LAWS. In the event of the enactment  after the
              date  hereof of any law of the  State of  Missouri  or the  United
              States of America imposing a specific tax on notes, bonds, or

                                       5

<PAGE>

              other  evidences  of  indebtedness  or  obligations  secured  by a
              mortgage or deed of trust on real estate, or in the event the laws
              now in force  relating  to taxes on notes,  mortgages,  bonds,  or
              other evidences of indebtedness or obligations secured by mortgage
              or deed of trust shall be in any manner changed, or in case such a
              tax shall be  assessed  under any  existing  law, as the result of
              which  Trustee  or  Beneficiary  may  become  chargeable  with the
              payment of any such  taxes,  then and in any such  event,  Grantor
              covenants  and  agrees to pay to Trustee  or  Beneficiary,  within
              thirty (30) days after written notice  thereof,  the amount of any
              such  tax;  provided  that if  Trustee  or  Beneficiary  shall  be
              required by law to pay any such tax, all moneys so expended  shall
              be due on demand,  bear  interest at the highest rate set forth in
              the Notes (or if no rate is specified, at the maximum lawful rate)
              and shall be secured  hereby.  In the event  Grantor shall fail to
              pay or cause to be paid or to reimburse Trustee or Beneficiary for
              advances as aforesaid to pay any such tax or taxes,  or if by such
              law it should be illegal for Grantor to pay any such tax or taxes,
              then all of the  Indebtedness  secured hereby shall, at the option
              of Beneficiary, become immediately due and payable without further
              notice, anything herein or in the evidences of any indebtedness or
              other  obligations  secured by this Deed of Trust to the  contrary
              notwithstanding;  provided,  however,  that  Grantor  shall not be
              required to pay any such tax in excess of an amount which when
              added to the interest  paid by Grantor on the  Indebtedness  would
              exceed the maximum lawful rate allowed in the State of Missouri.

         (11) CURE PAYMENTS.  If Grantor shall fail to pay any tax,  assessment,
              lien or other  charge  levied or assessed  against  the  Mortgaged
              Property,  or any part thereof,  or shall fail to keep and perform
              any of the covenants and conditions herein  contained,  Trustee or
              Beneficiary,  shall be privileged,  but shall not be obligated, to
              pay any such  tax,  assessment,  lien,  rent or other  charge,  to
              redeem such  property  from any sale or  foreclosure  for taxes or
              assessments  or liens,  to effect and pay for  insurance  required
              hereunder,  to  perform or pay for any other  obligations,  and to
              make such other disbursements as are necessary or advisable in the
              opinion of Trustee or  Benefificary to cure any default of Grantor
              hereunder  or  protect  the  lien or the  rights  of  Trustee  and
              Beneficiary hereunder; any and all such sums of money advanced for
              such purposes by Trustee or Beneficiary shall be deemed additional
              Indebtedness secured by this Deed of Trust and shall be payable on
              demand  with  interest  accruing  from the time so advanced at the
              highest rate per annum set forth under the Notes (or if no rate is
              specified, at the maximum lawful rate), and failure on the part of
              Grantor  to  repay  the  amounts  so  advanced  on  demand   shall
              constitute  an  event of  default  hereunder;  provided,  however,
              nothing herein  contained shall be construed as requiring  Trustee
              or  Beneficiary  to effect such  insurance or to advance or expend
              money or take any action for any of the purposes aforesaid.

         (12) FINANCIAL   INFORMATION.   Grantor  shall  furnish  the  financial
              statements as and when required to be provided by Grantor pursuant
              to and in accordance with the Securities Purchase Agreement.

         (13) SECURITY  AGREEMENT.  This instrument is intended to be a security
              agreement  pursuant to the Uniform  Commercial Code for any of the
              items  specified as part of the Mortgaged  Property  which,  under
              applicable law, may be subject to a security  interest pursuant to
              the Uniform Commercial Code, and Grantor hereby grants Beneficiary
              a security interest in said items,  whether now owned or hereafter
              acquired.   Grantor   agrees  that   Beneficiary   may  file  this
              instrument,  or a reproduction thereof, in the real estate records
              or other  appropriate  index, as a financing  statement for any of
              the  items  specified  as  part  of the  Mortgaged  Property.  Any
              reproduction of this instrument or of any other security agreement
              or  financing   statement  shall  be  sufficient  as  a  financing
              statement.  In addition,  Grantor agrees to execute and deliver to
              Beneficiary, upon Beneficiary's request, any financing statements,
              as  well as  extensions,  renewals  and  amendments  thereof,  and
              reproductions of this instrument,  in such form as Beneficiary may
              require to perfect a security interest with respect to said items.
              Grantor shall pay

                                       6
<PAGE>

              all costs of filing such financing  statements and any extensions,
              renewals  and  amendments  thereof,  and shall pay all  reasonable
              costs and expenses of any record searches for financing statements
              Beneficiary  may  reasonably  require.  Without the prior  written
              consent of  Beneficiary,  Grantor shall not create or suffer to be
              created pursuant to the Uniform Commercial Code any other security
              interest  in said  items,  including  replacements  and  additions
              thereto. Upon the occurrence of an event of default as hereinafter
              provided,  Beneficiary  shall have the remedies of a secured party
              under the Uniform  Commercial Code and, at  Beneficiary's  option,
              may  also  invoke  the  remedies  as  otherwise  provided  in this
              instrument.  In exercising  any of said  remedies,  Beneficary may
              proceed  against  the  items  of real  property  and any  items of
              personal  property  specified  as part of the  Mortgaged  Property
              separately or together and in any order whatsoever, without in any
              way affecting the availability of Beneficiary's remedie, under the
              Uniform  Commercial Code or of the remedies  otherwise provided in
              this instrument.

         (14) EXCLUDED PROPERTY.  Beneficiary hereby acknowledges that it has no
              security  interest in any of the Excluded Property nor is Tenant's
              interest of any third party in any Excluded  Property  subordinate
              or subject to this Deed of Trust or any security interest in favor
              of Beneficiary for Grantor.  Beneficiary  will execute and deliver
              to Grantor such reasonable instruments as Grantor may from time to
              time request  confirming the provisions  this Paragraph 14 in such
              reasonable form as Grantor may request.

         (15) GROUND  LEASE.  Grantor  shall have the right,  without  the prior
              written consent of Beneficiary,  to enter into a ground lease with
              the fee  owner  of the  Land on such  terms  as  determined  to be
              necessary and  appropriate by Grantor.  Grantor shall further have
              the  right to  record a  memorandum  of such  ground  lease in the
              records of the County of St.  Louis,  State of  Missouri.  In such
              event,  such ground lease shall be superior to this Deed of Trust;
              provided,  however,  Grantor  shall,  upon obtaining all necessary
              third party consents,  grant a leasehold deed of trust  respecting
              Grantor's  leasehold  interest  to  Beneficiary  on such terms and
              conditions as are mutually  acceptable to Grantor and  Beneficiary
              and consistent with the terms of this Deed of Trust.

         (16) SUBORDINATE  TO FIRST DEED OF TRUST.  Notwithstanding  anything to
              the contrary in this Deed of Trust,  the rights granted by Grantor
              to Beneficiary under this Deed of Trust respecting all portions of
              the Mortgaged Property are at all times subject and subordinate to
              the rights and interests of holder of fee simple title to the Land
              and to the First  Deed of Trust and any  renewals,  modifications,
              replacements,  and  extensions of such First Deed of Trust thereof
              to the extent  that any of the  Mortgaged  Property  is subject to
              such First Deed of Trust.  Grantor  shall not be in default  under
              this   Deed  of  Trust  or  be  deemed   to  have   breached   any
              representations  under  this Deed of Trust in the event and to the
              extent that  Beneficiary's  rights under this Deed of Trust are so
              subordinate. Further, Beneficiary agrees that it will execute such
              reasonable  agreements  and  instruments  as  may be  required  by
              Grantor and/or its lenders to further evidence such subordination.

         (17) RELEASE.  If all of Grantor's  covenants and agreements under this
              Deed of  Trust  are  performed  in full  and  either  (i) the debt
              described in the Convertible Senior Secured Notes is paid when due
              or (ii) the then  outstanding  principal amount of the Convertible
              Senior  Secured Notes plus all accrued  interest on such principal
              amount is converted into common shares of Borrower pursuant to the
              Securities Purchase  Agreement,  then these presents shall be void
              and this Deed of Trust shall be released with all recording  costs
              associated  with  recording  any  necessary  release to be paid by
              Grantor.

                                       7
<PAGE>

         (18) NO THIRD PARTY  RIGHTS OR  INTERESTS  AFFECTED.  Grantor,  by this
              instrument,  does not and does not  intend  to  mortgage,  pledge,
              alter or interfere in any way  whatsoever,  with the rights of any
              party(ies)   not  a  party   hereto.   Specifically   and  without
              limitation,  Grantor by this  instrument does not and shall not be
              deemed to have taken any action against any property of the estate
              of Bridge Information Systems,  Inc., a Missouri  corporation,  or
              any  of  its  affiliates   which  are   debtors-in-possession   in
              bankruptcy  cases  presently   proceeding  in  the  United  States
              Bankruptcy  Court for the Eastern  District of  Missouri,  Eastern
              Division,   Cases  No.  01-0141593-293   through   01-0141614-293,
              inclusive  (collectively,  herein  the  "Debtor"),  or to  act  or
              attempt to act to (i) take or transfer any interest in property of
              Debtor's estate, (ii) create, perfect, or enforce any lien against
              property of Debtor's estate, (iii) create,  perfect or enforce any
              pre-petition  lien  against  property  of  Debtor's  estate,  (iv)
              collect or recover any  pre-petition  claim against  Debtor or its
              estate, or (v) to set off the interests herein granted against any
              pre-petition  claim against the Debtor.  This instrument conveys a
              quitclaim  security  interest against the property rights, if any,
              in the Mortgaged Property and against these rights, if any, only.

         (19) DELIVERY  OF  NON-DISTURBANCE   AGREEMENT.  Upon  the  request  of
              Grantor,  Beneficiary  will execute and deliver a  non-disturbance
              and  attornment  agreement  in favor of all users,  occupants  and
              subtenants of the Mortgaged Property  confirming that in the event
              of a  foreclosure  of this Deed of  Trust,  the  purchaser  of the
              Mortgaged  Property at the foreclosure sale will recognize and not
              disaffirm or disturb either the agreements between Grantor and any
              such users,  occupants and  subtenants or the use and occupancy of
              the Mortgaged Property by such users,  occupants and subtenants in
              accordance  with such  agreements all of which such agreements and
              such users shall  continue in full force and effect in  accordance
              with their terms.

          (20) COUNTERPARTS.  This  Deed of Trust  may be  executed  in  several
               counterparts, with signature to one such counterpart being deemed
               signature to all such counterparts, each of which shall be deemed
               an original and all of which taken together shall  constitute one
               and the same instrument.

          (21) FURTHER ADVANCES. This Deed of Trust is to be governed by Section
               443.055 of the revised Statues of Missouri,  In the event Grantee
               shall receive a notice pursuant to Section 443.055 of the Revised
               Statues of  Missouri  terminating  this Deed of Trust as security
               for future advances for future obligations made or incurred after
               the  date of such  notice,  then  upon  receipt  of such  notice,
               Grantee  shall  have  no  further  obligation  under  Notes,  any
               document  evidencing,  securing  or related  to the  indebtedness
               secured  by this Deed of Trust  notwithstanding  anything  to the
               contrary in any such document.

          (22) EVENTS  OF  DEFAULT;   REMEDIES.   If  an  event  of  default  as
               specifically  set forth herein  shall occur,  or in the event any
               one or more of the  following  events  shall  occur (an "event of
               default"):  (a) If default shall be made in the payment of any of
               the Indebtedness  secured hereby, or any interest thereon, as and
               when the same shall become due and payable,  whether by reason of
               demand,  acceleration or otherwise;  (b) If default shall be made
               by Grantor in the due  performance or observance of any covenant,
               agreement  or  condition  herein  contained  or  required  to  be
               performed or observed by Grantor and such default shall  continue
               for a period of ten (10) days after the date of the  mailing of a
               written  notice  addressed to Grantor at the address  hereinabove
               set forth,  or to such  other  address  as may be  designated  by
               Grantor  in  written  notice  delivered  to  Beneficiary;  (c) If
               Grantor  should  become   insolvent   either  in  the  equity  or
               bankruptcy   definition  of  the  term,  or  if  a  voluntary  or
               involuntary  petition in bankruptcy or  reorganization of Grantor
               is filed,  or if Grantor makes an  assignment  for the benefit of
               creditors or an arrangement with its creditors,  or if a receiver
               or trustee is appointed by Grantor's business or property,  or if
               Grantor's  interest  in the  Mortgaged  Property  shall  pass  by
               operation of law as the result of any creditor's action,  suit or
               proceeding or if any of the foregoing shall occur with respect to
               any guarantor of the

                                       8
<PAGE>

               Indebtedness secured hereby; (d) If the Mortgaged Property or any
               portion   thereof  or   ownership   interest   therein  is  sold,
               transferred, assigned or in any manner conveyed without the prior
               written  consent  of  Beneficiary;  (e) If a default  or event of
               default shall occur under or within the meaning of any other deed
               of trust or mortgage covering any of the Mortgaged Property;  (f)
               If a default or event of default  shall occur under or within the
               meaning of any loan  agreement  executed in  connection  with the
               Indebtedness  or under  any  agreement,  document  or  instrument
               (including  any  guaranty)  evidencing  or  securing  any  of the
               indebtedness secured hereby; (g) If a default or event of default
               shall  occur  under any other  present  or future  obligation  to
               Beneficiary,  including, without limitation, any other loan, line
               of credit, revolving credit, guaranty or reimbursement obligation
               relating to any letter of credit  issued by  Beneficiary  for the
               account of Grantor,  or any other agreement  purporting to convey
               to Beneficiary a lien or encumbrance upon, or a security interest
               in, any of the property or assets of Grantor;  or (h) If pursuant
               to  ss.443.055   R.S.Mo.,   as  amended,   Grantor  shall  notify
               Beneficiary  of Grantor's  election to terminate the operation of
               this Deed of Trust as  security  for  future  advances  or future
               obligations;

THEN,  AND IN EACH  AND  EVERY  SUCH  EVENT:  (1) All of the  Indebtedness  then
outstanding and unpaid and all accrued and unpaid interest thereon shall, at the
option of Beneficiary,  become and be due and payable  immediately,  anything in
the Notes  evidencing  any of the  Indebtedness  or in this Deed of Trust to the
contrary  notwithstanding;  (2) Upon demand of Trustee or  Beneficiary,  Grantor
shall  forthwith  surrender to Beneficiary  the actual  possession of all of the
Mortgaged  Property  and it shall  be  lawful  (whether  or not  Grantor  has so
surrendered  possession)  for  Beneficiary,  either  personally  or by agents or
attorneys, forthwith to enter into or upon the Mortgaged Property and to exclude
Grantor,  the agents and  servants of  Grantor,  and all  parties  claiming  by,
through or under Grantor,  wholly therefrom,  and Beneficiary shall thereupon be
solely and  exclusively  entitled to possession of said  Mortgaged  Property and
every part thereof,  and to use,  operate,  manage and control the same,  either
personally or by managers,  agents, servants or attorneys, to the fullest extent
authorized by law; and upon every such entry,  the Beneficiary may, from time to
time,  at the  expense of Grantor,  make all  necessary  and proper  repairs and
replacements  to the Mortgaged  Property as Beneficiary  in its discretion  sees
fit, and any amounts so expended  shall be due on demand,  bear  interest at the
post-maturity  rate set  forth in the Notes and  shall be  secured  hereby;  (3)
Trustee, at the request of Beneficiary, shall proceed to sell, either by himself
or by agent or attorney, the Mortgaged Property or any part(s) thereof at public
vendue or outcry at the  customary  place to the  highest  bidder for cash after
first  giving  notice as required by the  statutes of the State of Missouri  and
upon such sale Trustee shall receive the proceeds of such sale and shall execute
and deliver deed or deeds or other  instruments  of  conveyance,  assignment and
transfer to the property sold, to the purchaser or purchasers  thereof;  and (4)
Trustee and/or  Beneficiary  may proceed by suit or suits at law or in equity to
enforce the  Indebtedness  secured hereby and/or to foreclose this Deed of Trust
and in such event Trustee shall be entitled to a reasonable fee for his services
and  Trustee and  Beneficiary  shall be  entitled  to a  reasonable  fee for the
services of their attorneys and agents, and for all expenses, costs and outlays.
Upon or at any time after the filing of any suit to  foreclose  the lien hereof,
Beneficiary  shall be  entitled  as a matter  of right to the  appointment  of a
receiver of the Mortgaged Property,  either before or after sale, without notice
and without  regard to the solvency or  insolvency of Grantor at the time of the
application for such receiver,  and without regard to the solvency or insolvency
of Grantor at the time of the application for such receiver,  and without regard
to the then value of the Mortgaged Property, and Trustee, or Beneficiary, may be
appointed as such  receiver.  Such receiver  shall have all powers  necessary or
incidental for the protection,  possession, control, management and operation of
the Mortgaged Property.

         In any sale or sales made by Trustee under the power herein granted, or
upon any sale or sales under or by virtue of any judicial  proceedings:  (i) the
whole of the Mortgaged  Property,  real,  personal and mixed, may be sold in one
parcel as an entirety, or the Mortgaged Property may be sold in separate parcels
as may be determined by Trustee in his discretion;  (ii) all recitals  contained
in any deed or other

                                       9

<PAGE>

instrument of  conveyance,  assignment or transfer made and delivered by Trustee
in pursuance of the powers  granted and conferred  herein,  shall be prima facie
evidence of the facts therein set forth;  (iii) such sale or sales shall operate
to divest Grantor of all right, title, interest, claim and demand, either at law
or in equity,  under statute or otherwise,  in and to the Mortgaged Property and
every part thereof so sold and shall be a perpetual  bar, both in law or equity,
against  Grantor and any and all persons  claiming or to claim from,  through or
under  Grantor;  and (iv)  Beneficiary  may bid for and purchase  the  Mortgaged
Property or any part  thereof and may make  payment  therefor by  presenting  to
Trustee the Notes  secured  hereby or the other  evidences  of the  Indebtedness
secured  hereby so that there may be endorsed as paid thereon the amount of such
bid which is to be applied to the payment of the Indebtedness  secured hereby as
herein provided.  Each time it shall become necessary to insert an advertisement
of  foreclosure,  and sale is not had,  Trustee shall be entitled to receive the
sum of One  Hundred  Dollars  ($100.00)  for  services  and  the  amount  of all
advertising charges from Grantor,  all of which shall be further secured hereby.
Upon the foreclosure and/or sale of the Mortgaged Property, or any part thereof,
the  proceeds of such sale or sales shall be applied as follows:  First,  to the
cost and expense of executing this trust,  including reasonable  compensation of
Trustee and reasonable  attorneys'  fees and expenses,  outlays for  documentary
stamps,  cost of procuring title insurance  commitments,  continuing  abstracts,
title  searches or  examinations  reasonably  necessary or proper;  next, to the
payment of any and all advances  made by Trustee or  Beneficiary,  with interest
thereon  as hereinabove  provided;  next,  to the payment of  the balance of the
Indebtedness secured hereby, with interest thereon as therein provided;  and any
surplus  thereafter shall be paid to Grantor or any other party legally entitled
thereto; provided that in the event the net proceeds of such sale or sales shall
not be sufficient to pay in full the Indebtedness secured hereby, Grantor hereby
promises and agrees to pay any deficiency thereon on demand with interest.

         Grantor  shall  not  apply  for or avail  itself  of any  appraisement,
valuation,  redemption,  stay,  extension or exemption  laws,  or any  so-called
"moratorium  laws",  now existing or hereafter  enacted,  in order to prevent or
hinder the  enforcement or foreclosure of this Deed of Trust,  and hereby waives
the benefit of such laws.  Grantor,  for itself,  its  successors  and  assigns,
hereby  wholly  waives  the  period of  redemption  and any right of  redemption
provided  under any existing or future law in the event of a foreclosure of this
Deed of Trust.  Grantor,  for itself and all who may claim  through or under it,
hereby waives any and all right to have the property and estates  comprising the
Mortgaged Property marshalled upon any foreclosure of the lien hereof and hereby
agrees that any court having  jurisdiction  to foreclose such lien may order the
Mortgaged  Property  sold as an  entirety.  Grantor  hereby  waives any order or
decree of foreclosure,  pursuant to the rights herein granted,  on behalf of the
Grantor,  and each and every  person  acquiring  any interest in or title to the
Mortgaged Property,  subsequent to the date of this Deed of Trust, and on behalf
of all other persons to the extent permitted by applicable law.

     The  Trustee  may resign at any time by written  instrument  to that effect
delivered to Beneficiary.  Beneficiary  shall be entitled to remove, at any time
and  from  time to  time,  including  any  time  before,  during  or  after  the
commencement or completion of any foreclosure  proceeding,  the Trustee. In case
of the death, removal, resignation,  refusal to act or otherwise being unable to
act of the  Trustee,  Beneficiary  shall be  entitled  to select  and  appoint a
successor  Trustee  hereunder by an instrument duly executed,  acknowledged  and
recorded in the manner and form for  conveyances  of real estate in the State of
Missouri,  which recording may occur before, during or after the commencement or
completion of any foreclosure  proceeding,  and any such successor Trustee shall
thereupon  succeed to Trustee as  Trustee  hereunder  and to all of the  rights,
powers, duties,  obligations and estate of said Trustee as if specifically named
herein, provided no defect or irregularity in the resignation or removal of said
Trustee or in the  appointment  of a successor  Trustee or in the  execution and
recording of such  instrument  shall  affect the  validity of said  resignation,
removal  or  appointment  or any act or  thing  done by such  successor  Trustee
pursuant thereto.  Additionally,  whether the recording of the successor Trustee
instrument takes place before, during or after the commencement or completion of
any  foreclosure  proceeding  shall  have no effect  upon the  validity  of said
proceeding.  Trustee shall not be disqualified  from acting as Trustee

                                       10
<PAGE>

hereunder or from  performing any of the duties of Trustee,  or from  exercising
the  rights,  powers and  remedies  herein  granted,  by reason of the fact that
Trustee is an officer, employee or stockholder of Beneficiary, or is interested,
directly or indirectly, as the holder of the Convertible Senior Secured Notes or
other  Indebtedness  secured  hereby,  Grantor  hereby  expressly  consenting to
Trustee  acting  as  Trustee  irrespective  of the fact  that  Trustee  might be
otherwise  disqualified for any of the foregoing reasons,  and that any interest
which  Trustee or any  successor  shall have or may acquire in the  Indebtedness
secured  hereby,  or the Mortgaged  Property,  shall neither  interfere with nor
prevent his acting as Trustee or from  purchasing  said property at said sale or
sales,  and all parties waive any  objection to Trustee  having or acquiring any
such interest in the Indebtedness or Mortgaged Property and continuing to act as
Trustee.  Trustee  covenants  faithfully to perform and fulfill the trust herein
created,  but shall be liable,  however,  only for gross  negligence  or willful
misconduct as determined by a court of competent jurisdiction.

     No remedy herein  conferred  upon or reserved to Trustee or  Beneficiary is
intended to be exclusive of any other remedy,  but every remedy herein  provided
shall be  cumulative,  and shall be in  addition  to every  other  remedy  given
hereunder or now or hereafter  existing at law or in equity, or by statute;  and
every power and remedy  given by this Deed of Trust to Trustee or to Beneficiary
may be exercised from time to time and as often as may be deemed  expedient.  No
delay or omission by Trustee or by  Beneficiary  to exercise  any right or power
arising  from any  default  shall  impair  any  such  right or power or shall be
construed  to be a waiver of any  default or an  acquiescence  therein.  In case
Trustee  shall have  proceeded  to enforce any right under this Deed of Trust by
foreclosure,   entry  or  otherwise,   and  such  proceedings  shall  have  been
discontinued  or abandoned  because of waiver or for any other reason,  or shall
have been determined  adversely,  then, and in such and every such case, Grantor
and Trustee  shall  severally  and  respectively  be  restored  to their  former
positions  and rights  hereunder in respect of the Mortgaged  Property,  and all
rights,  remedies  and  powers  of  Trustee  shall  continue  as  though no such
proceedings  had been taken.  If any additional sum or sums shall become due and
owing,  by  Grantor to  Beneficiary,  pursuant  to the  provisions  hereof,  the
affidavit  of  Beneficiary  shall be  sufficient  evidence of the fact that such
additional sums are secured hereby in the amount set forth in such affidavit.

(23) GENERAL  PROVISIONS.  This Deed of Trust and all  provisions  hereof  shall
     extend to and be binding upon Grantor and all parties  claiming by, through
     or under  Grantor.  All covenants and agreements of Grantor herein shall be
     joint and several.  Grantor  acknowledges  and agrees that all expenses and
     amounts  expended  by  Trustee  and/or  Beneficiary  or owed to  Trustee or
     Beneficiary under any indemnity in this Deed of Trust,  shall be due as and
     when  incurred,  bear  interest at the  highest  rate set forth in the Debt
     Instruments  (or if no rate is specified,  at the maximum  lawful rate) and
     shall constitute Indebtedness secured hereby, and all indemnities contained
     in this Deed of Trust shall apply  notwithstanding any negligent conduct or
     omission  of  Beneficiary  or  Trustee  (except  to  the  extent  of  gross
     negligence or willful  misconduct on the part of  Beneficiary  or Trustee),
     are in addition to any legal liability or responsibility  Grantor otherwise
     has,  and  shall  survive  the  foreclosure  of this  Deed of Trust and the
     payment of the  obligations  secured  hereunder.  The  unenforceability  or
     invalidity  of any  provision or provisions of this Deed of Trust shall not
     render any other provision or provisions herein contained  unenforceable or
     invalid.  The term  "Beneficiary"  shall be deemed to mean and  include the
     endorsee(s),  transferee(s)  or the holder(s) at the time being of the Debt
     Instruments  and/or any of the other  Indebtedness  secured hereby, and the
     successors  and assigns of  Beneficiary,  and the term  "Trustee"  shall be
     deemed to mean and  include  any  successors  of the  Trustee  in the trust
     hereby  created;  and the covenants and agreements  shall bind and inure to
     the benefit of the heirs, executors,  personal  representatives,  succesors
     and assigns of Grantor and the  successors  in trust of the Trustee and the
     endorsee(s),  transferee(s),  successors and assigns of Beneficiary. All of
     the grants, covenants, terms, agreements,  provisions and conditions herein
     contained  shall run with the land. Time is of the essence of all Grantor's
     obligations  hereunder.  The  captions or headings  used herein are for the
     convenience of the parties and are not a part of this Deed of Trust. To the
     extent that proeeeds of

                                       11
<PAGE>

         the  Indebtedness  secured  hereby or advances under this Deed of Trust
         are used to pay any  outstanding  lien,  charge  or  prior  encumbrance
         against the Mortgaged Property, Beneficiary is hereby subrogated to any
         and  all  rights  and  liens  held  by any  owner  or  holder  of  such
         outstanding  liens,  charges and prior  encumbrances,  irrespective  of
         whether  said liens,  charges or  encumbrances  are  released.  Trustee
         hereby lets the  Mortgaged  Property to Grantor and assigns  until this
         Deed of Trust be released and satisfied, or until default be made under
         the covenants and agreements hereof,  upon the following terms, to wit:
         Grantor and all persons claiming or possessing said Mortgaged  Property
         or any part thereof,  shall pay rent  therefor  during said term at one
         cent per  month,  payable  on  demand,  and  shall  and will  surrender
         peaceful  possession  of said  premises,  and every  part  thereof,  to
         Trustee  immediately  upon such default,  and without  notice or demand
         therefor,  provided  that  nothing  in this  Deed  of  Trust  shall  be
         construed to prevent the Beneficiary from having and taking every legal
         means to enforce payment of the  Indebtedness  secured hereby,  without
         having first  enforced  this Deed of Trust;  provided,  further that if
         Grantor shall well and truly pay or cause to be paid to Beneficiary the
         Indebtedness  secured  hereby as and when the same shall become due and
         payable and this Deed of Trust is no longer  intended to secure  future
         advances and future  obligations   under   Section  443.055 R.S.Mo., as
         amended,  then this  trust  shall  cease and be void and the  Mortgaged
         Property  hereinbefore  conveyed  shall  be  released  at the  cost  of
         Grantor,  otherwise  to remain in full force and effect.  To the extent
         that  Beneficiary  receives any payment on account of the  Indebtedness
         and  any  such   payment(s)   or  any  part  thereof  is   subsequently
         invalidated,  declared to be  fraudulent  or  preferential,  set aside,
         subordinated and/or required to be repaid to a trustee, receiver or any
         other party under any bankruptcy  act, state or federal law, common law
         or equitable  cause,  then, to the extent of such payment(s)  received,
         the  Indebtedness or part thereof  intended to be satisfied and any and
         all liens, security interests, mortgages and/or other encumbrances upon
         or pertaining to any assets of Grantor and  theretofore  created and/or
         existing in favor of  Beneficiary  as security  for the payment of such
         Indebtedness shall be revived and continue in full force and effect, as
         if such  payment(s) had not been received by Beneficiary and applied on
         account of the Indebtedness. The Recitals above stated are incorporated
         herein by this reference.

         IN THE EVENT ANY OF THE  INDEBTEDNESS  SECURED  HEREBY IS PAYABLE  UPON
DEMAND, NEITHER THIS DEED OF TRUST NOR ANYTHING CONTAINED HEREIN SHALL BE DEEMED
TO  ALTER,  LIMIT,  OR  OTHERWISE  IMPINGE  UPON THE  DEMAND  CHARACTER  OF SUCH
INDEBTEDNESS.
                                       12
<PAGE>

         IN WITNESS  WHEREOF,  Grantor has executed this Missouri Future Advance
Deed of Trust and Security Agreement as of the day and year first above written.

                                   Grantor:

                                   SAVVIS COMMUNICATIONS CORPORATION

                                   By: /s/  Steven M. Gallant
                                       ---------------------------
                                       Printed Name: Steven M. Gallant
                                       Title: Vice President and General Counsel

                                       13
<PAGE>

                                    EXHIBIT A
                                      Land

Lot 1 of Mallinckrodt HQ Campus  according to the plat thereof  recorded in Plat
Book 347 page 548 of the St. Louis County Records.

                                       14
<PAGE>

                                    EXHIBIT B

o    Amended and Restated  Credit  Agreement,  dated as of September 5, 2000, by
     and among the Registrant, as guarantor,  SAVVIS Communications Corporation,
     a  Missouri  corporation,   as  borrower,  and  Nortel  Networks  Inc.,  as
     administrative agent, and the lenders named therein.

o    Pledge  Agreement,  dated as of  September  5,  2000,  by and  between  the
     Registrant  and  Nortel  Networks  Inc.,  as  administrative  agent for the
     lenders.

o    Amended and Restated Pledge and Security  Agreement,  dated as of September
     5, 2000,  by and  between  SAVVIS  Communications  Corporation,  a Missouri
     Corporation  and Nortel  Networks  Inc.,  as  administrative  agent for the
     lenders.

o    Pledge and  Security  Agreement,  dated as of  September  5,  2000,  by and
     between  Global  Network   Assets,   LLC  and  Nortel   Networks  Inc.,  as
     administrative agent for the lenders.

o    Amended and  Restated  Guaranty  Agreement,  dated as of September 5, 2000,
     delivered by the  Registrant  to and in favor of Nortel  Networks  Inc., as
     administrative agent for itself and the other lenders.

o    Amended and  Restated  Guaranty  Agreement  dated as of  September 5, 2000,
     delivered by Global Network Assets,  LLC to and in favor of Nortel Networks
     Inc., as administrative agent for itself and the other lenders.

                                       15

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