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                                                                   EXHIBIT 10.37

10/13/98

R H Y T H M S

October 13, 1998

Dave Shimp
230 Norwich Court
Lake Bluff, IL 60044

Subject: Offer of Employment with RHYTHMS NetConnections, Inc.

Dear Dave:

It gives me great pleasure to offer you employment with RHYTHMS, NetConnections
Inc. (RHYTHMS or the Company) This letter will serve to outline the basic terms
of your employment.

1.  Start of Employment: The effective date of your employment will be October
    16,1998.

2.  Your title will be Chief Marketing Officer. You will report directly to me.
    This offer is subject to approval of the Compensation Committee of Rhythms
    Board of Directors.

3.  Compensation: Your annual salary will be $175,000. You will be eligible for
    all standard company benefits.

4.  Bonus: You will be eligible for the 1998 Bonus Plan of 25% of your base
    salary.

5.  Stock: Subject to approval by the Board of Directors, you will be granted
         options to purchase 125,000 shares of Common Stock, at start of
         employment, at an exercise share equal to the fair market price of a
         share of the Company's common stock on the date the option is granted.
         The Board establishes the fair market price of a share of Common Stock.
         The fair market price of a share of Common Stock is generally in the
         range of 70%-75% of the value of a share of the Company's Preferred
         Stock, which was recently valued at $5.00 per share. Twenty five
         percent (25%) of the options will vest on the first anniversary of your
         start date and the remaining seventy five percent (75%) will vest
         thereafter on a monthly basis over the succeeding three (3) year
         period, total vesting period four (4) years.

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10/13/98

R H Y T H M S

6.  Miscellaneous: a) Signing Bonus;TBD (function of cash collections
negotiation With Ward Howell-LAI quotes fee analysis and schedule of bonus.) b)
The Company will provide a company apartment for one year. c) The Company will
provide a lease vehicle for use in Denver, CO. d) The Company will provide
airfare to commute weekends to Chicago, Ill. e) Line of credit concept for an
employee loan (maximum of $50K, 10% interest, payable eighteen (18) months
after date of hire.) f) Eligible for relocation expenses, approximately $80K,
if/when relocation to Denver, CO.

Employment with RHYTHMS will not be for a specified term and can be terminated
by you or by the Company at any time for any reason, with or without cause, and
with or without notice. Any contrary representations which may have been made or
which may be made to you are/will be superseded by this offer. The "at will"
nature of your employment described in this offer letter will constitute the
entire agreement between you and the Company concerning the duration of your
employment and the circumstances under which you or the Company may terminate
the employment relationship. Although your job duties, title, compensation and
benefits may change over time, the "at will" term of your employment can only be
changed in writing and signed by you and the President of the Company. If you
accept this offer, the terms described in this letter will be the terms of your
employment. This offer, is contingent on you executing the RHYTHMS Proprietary
Information and Inventions Agreement and Non-Competition Agreement, copies of
which are attached here to and incorporated by reference. The terms of this
letter and your employment will be governed by the laws of the State of
Colorado. In compliance with the Federal Immigration Reform Act, your employment
pursuant to this offer is contingent on your providing the legal required proof
of your identity and authorization to work in the United States.

Assuming this offer letter is acceptable to you, please sign and return to me,
along with signed copies of the Employee Proprietary Information and Inventions
Agreement and Covenant Not to Compete, which are enclosed.

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Catherine Hapka
President & CEO

     Dave, we believe we have an excellent opportunity to build a major next-
generation communication company. We are delighted that you are considering
joining our talented and energetic team, and I am looking forward to working
with you.

Sincerely,

/s/ Catherine Hapka
-----------------------------
Catherine Hapka
Chief Executive Officer

Accepted & Acknowledged

/s/ Dave Shimp                                        10-14-98
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Dave Shimp                                   Date<PAGE>

                                                                   EXHIBIT 10.38

Catherine Hapka
President & CEO

Tuesday, March 31, 1998

Scott Chandler
434 Hunter Ave.
State College, PA 16801

Subject:  Offer of Employment with RHYTHMS NetConnections Inc.

Dear Scott:

     It gives me great pleasure to offer you employment with RHYTHMS
NetConnections Inc. Inc. ("RHYTHMS" or the "Company'). This letter will serve to
outline the basic terms of your employment.

     1.     Start of Employment
     The effective date of your employment will be April 8, 1998 ("Start Date").

     2.     Position
     You will be Chief Financial Officer for the Company, You will report
     directly to me.

     3.     Salary
     Your annual base salary will be $180,000. You will be eligible for all
     standard Company benefits.

     4.     Bonus
     You will be eligible for an annual bonus of up to 40% of your base salary,
     payable upon achievement of milestones to be established by me.

     5.     Stock
     Subject to approval by the Board of Directors, you will be granted options
     to purchase 160,000 shares of Common Stock at an exercise price per share
     equal to the fair market

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Catherine Hapka
President & CEO

     price of a share of the Company's common stock on the date the option is
     granted. Twenty five percent (25%) of the options will vest on the first
     anniversary of your Start Date, and the remaining seventy five percent
     (75%) will vest thereafter on a monthly basis over the succeeding three (3)
     year period, for a total vesting period of 4 years. The Company will also
     reimburse you for up to $2,500 per year, for the interest carrying costs
     associated with financing the purchase of up to 80,000 shares of Common
     Stock.

     6.     Location
     The Company headquarters are located in Englewood, Colorado. The Company
     will reimburse you for up to $85,000 for your actual incurred and
     reasonable expenses in relocating to Colorado, in accordance with the terms
     and conditions as defined in Attachment A.

     Employment with RHYTHMS will not be for a specified term and can be
terminated by you or by the Company at any time for any reason, with or without
cause, and with or without notice. Any contrary representations which may have
been made or which may be made to you are/will be superseded by this offer. The
"at will" nature of your employment described in this offer letter will
constitute the entire agreement between you and the Company concerning the
duration of your employment and the circumstances under which you or the Company
may terminate the employment relationship. Although your job duties, title,
compensation and benefits may change over time, the "at will" term of your
employment can only be changed in a writing which is signed by you and by the
President of the Company. If you accept this offer, the terms described in this
letter will be the terms of your employment. This offer is contingent on you
executing the RHYTHMS Proprietary Information and Inventions Agreement and
NonCompetition Agreement, copies of which are attached hereto and incorporated
by reference. The terms of this letter and your employment will be governed by
the laws of the State of Colorado.

     In compliance with the Federal Immigration Reform Act, your employment
pursuant to this offer is contingent on your providing the legally required
proof of your identity and authorization to work in the United States.

     Assuming this offer letter is acceptable to you, please sign a copy and
return it to me, along with signed copies of the Proprietary Information and
Inventions Agreement and NonCompetition Agreement.

<PAGE>

Catherine Hapka
President & CEO

     Scott, we believe we have an excellent opportunity to build a major next-
generation communication company. We are delighted that you are considering
joining our talented and energetic team, and I am looking forward to working
with you.

Sincerely,

/s/ Catherine Hapka
-----------------------------
Catherine Hapka

Accepted

/s/ Scott Chandler                                     4-1-98
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Scott Chandler                               DateEXHIBIT 10.21

                        TANNING TECHNOLOGY CORPORATION
                               November 1, 1999

To:    Bipin Agarwal

From:  Larry Tanning

Re:    Five Quarter Compensation Plan

    As we have discussed, Tanning has developed a compensation plan for certain
senior executives for the five-quarter period beginning October 1, 1999 and
ending December 31, 1999.  Your cash compensation for the period will be an
annual rate of $192,500 ($8,020.83 on  a semi-monthly basis).

    Your existing employment and related agreements with Tanning (including
provisions relating to non-competition, etc.) will remain in full force and
effect except to the extent related to cash compensation matters.  As to all
matters relating to cash compensation, including cash incentive compensation and
bonus arrangements, the cash compensation described above will govern, effective
October 1, 1999.

    We are extremely excited about our company's future, and look forward to
more success together. Please indicate your agreement with the provisions of
this memorandum by signing below.

                                          Very truly yours,

                                          TANNING TECHNOLOGY CORPORATION

                                          By:  /s/ Larry G. Tanning

AGREED AND ACCEPTED

By:  /s/ Bipin Agarwal

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