CONSULTING AGREEMENT

                  THIS  CONSULTING  AGREEMENT  is made  and  entered  into as of
December 15,  1999,  by and between High Speed Net  Solutions,  Inc.  (HSNS ), a
Florida corporation, and RPC International ("Consultant").

                                               W I T N E S S E T H:
                                               ------------------

                  WHEREAS,  Summus is desirous of Consultant  providing  certain
services to HSNS; and

                  WHEREAS, Consultant desires to provide such services to HSNS;

                  NOW,  THEREFORE,  in  consideration of the premises and mutual
covenants herein contained, the parties hereto hereby agree as follows:

1.       SERVICES.  HSNS  hereby  retains  Consultant  to  perform  professional
         and  management  services  including but not limited to,  business plan
         development,   recruitment  and  hiring  of  HSNS  employees,  customer
         management of HSNS's Online Internet  Advertising  initiative,  and any
         other advisory and managerial responsibilities requested by HSNS.

2.       COMPENSATION.  In  consideration  for  the  services  provided  by  the
         Consultant  hereunder,  HSNS shall pay the Consultant:

         2.1.     A monthly retainer of $30,000 per month;

         2.2      A sales commission as follows:

                  4% of the  subtotal of all HSNS  revenues up to and  including
         $2,000,000  that  are  attributable  to  Online  Internet   Advertising
         accounts developed or managed by RPC;

                  5% of the subtotal of all HSNS  revenues  from  $2,000,001  to
         $5,000,000  that  are  attributable  to  Online  Internet   Advertising
         accounts developed or managed by RPC;

                  6% of the subtotal of all HSNS  revenues  from  $5,000,001  to
         $10,000,000  that  are  attributable  to  Online  Internet  Advertising
         accounts developed or managed by RPC;

                  7%  of  the  subtotal  of  all  HSNS  revenues  in  excess  of
         $10,000,000  that  are  attributable  to  Online  Internet  Advertising
         accounts developed or managed by RPC;

         2.3.     Incentive stock options to purchase from HSNS, up to 200,000
                  of its HSNS restricted  shares  currently held, at an exercise
                  price of Ten Dollars ($10.00) per share.

         2.4      Vesting in the stock options will occur based on the following
                  schedule:

                  2.4.1.   50,000  shares  when HSNS  revenue  attributable  to
                           accounts  developed  or managed by RPC achieves
                           $2,000,000;

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                  2.4.2.   50,000  shares  when HSNS  revenue  attributable  to
                           accounts  developed  or managed by RPC achieves
                           $5,000,000;

                  2.4.3.   50,000  shares  when HSNS  revenue  attributable  to
                           accounts  developed  or managed by RPC achieves
                           $10,000,000;

                  2.4.4.   50,000  shares  when HSNS  revenue  attributable  to
                           accounts  developed  or managed by RPC achieves
                           $20,000,000;

3.       EXPENSES.  HSNS  agrees to  reimburse  the  Consultant  for all  travel
         costs reasonably and actually  incurred by the Consultant in performing
         services under this Agreement,  as well as any other expenses  approved
         by HSNS.

4.       TERM.  This  Agreement  shall be effective as of December 15, 1999, and
         shall  continue  until  December  15,  2000.   This  Agreement  may  be
         terminated  by  either  party  upon  ten  days  prior  written  notice;
         provided,   however,   that   the   obligations   arising   under   the
         Confidentiality and Non-Disclosure Agreement between the Consultant and
         HSNS,  of even date  herewith,  shall survive the  termination  of this
         Agreement.

         4.1.     In the event that this  Agreement is  terminated by HSNS prior
                  to March 31,  2000,  then the  compensation  in  Article 2. 1,
                  Monthly Retainer, shall continue for two months following said
                  termination.  In the event that this  Agreement is  terminated
                  after  March  31,  2000 but  before  June 30,  2000,  then the
                  compensation in Article 2.1,  Monthly  Retainer shall continue
                  for 3 months  following said  termination.  Any termination of
                  this  agreement  by HSNS  after  June 30,  2000  and  prior to
                  December  15,  2000  shall  result  in  Consultant   receiving
                  compensation  under  Article  2. 1 for a  period  of 4  months
                  following said termination.

         4.2.     The compensation in Article 2.2, Sales Commission, shall apply
                  for one year following the termination of this agreement,  but
                  for a period not less than two years from the signing  date of
                  this agreement.

5.       COOPERATION  AND   CONSULTANT.   HSNS  management  and  employees  will
         cooperate  with tile  Consultant  in the  performance  of the  services
         including  participating in one-on-one  interviews and making available
         any  pertinent  information  from files on  personnel  history,  salary
         administration and benefits.

6.       RELATIONSHIP OF THE PARTIES.  The  relationship  between the Consultant
         and HSNS shall be that of an independent contractor.  Nothing contained
         in this  Agreement  shall be deemed to  constitute  a  relationship  of
         agency, joint venture,  partnership or any other relationship than that
         specified.  Consultant  shall be  responsible  for all  income,  social
         security  and other  state,  local and  federal  taxes  that arise as a
         result of the  relationship  contemplated  hereby and the payments made
         hereunder.

7.       CONFIDENTIALITY. The Consultant shall maintain all information obtained
         in  connection  with  Consultant's  performance  under  this  Agreement

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         confidential  in  accordance  with the terms of a  Confidentiality  and
         Non-Disclosure  Agreement of even date  herewith,  the form of which is
         provided as Exhibit A to this Agreement.

8.       NOTICE. Any notice or other communication under this Agreement shall be
         sufficiently given if hand delivered, sent by prepaid certified mail or
         sent  via  facsimile  so long as a  confirmation  is  received,  to the
         following:

         If to the Consultant:            RPC International LC
                                          P.O. Box 3 RR3
                                          Afton, OK  73162

         If to HSNS:                      Alan R. Kleinmaier
                                          HSNS Ltd.
                                          Suite 2120
                                          434 Fayetteville Street Mall
                                          Raleigh, NC 27601

9.       MODIFICATION; WAIVER; AMENDMENTS. No provision of this Agreement may be
         modified,  waived or  discharged  unless such waiver,  modification  or
         discharge is agreed to in writing,  signed by the  Consultant and HSNS.
         No waiver by any  party  hereto at any time of any  breach by any other
         party hereto of, or compliance with, any condition or provision of this
         Agreement  to be performed by such other party shall be deemed a waiver
         of any similar or dissimilar provisions or conditions at the same or at
         any prior or  subsequent  time.  No  amendments  or  additions  to this
         Agreement  shall be binding unless in writing and signed by all parties
         hereto, except as herein otherwise provided.

10.      APPLICABLE  LAW.  This  Agreement  shall be  governed  in all  respects
         whether  as  to  validity,   construction,   capacity,  performance  or
         otherwise,  by the laws of the State of North Carolina,  without regard
         to choice of law principles.

11.      SEVERABILITY.   The  provisions  of  this  Agreement  shall  be  deemed
         severable and the invalidity or unenforceability of any provision shall
         not affect  the  validity  or  enforceability  of the other  provisions
         hereof.

12.      HEADINGS.  The titles to the sections of this  Agreement are solely for
         the  convenience  of the  parties  and  shall  not be used to  explain,
         modify,  simplify,  or aid in  interpretation of the provisions of this
         Agreement.

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<PAGE>

                  IN WITNESS WHEREOF,  the parties have executed this Consulting
Agreement to be effective as of the day and year first hereinabove written.

                                                RPC International L.C.


                                         /s/ illegible signature
                                         By: President



HSNS, LTD.


/s/ Alan R. Kleinmaier
By:Alan R. Kleinmaier
Executive Vice President


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