Your Stamps.com $80 Offer

FREE 5lb Digital Scale

As a new Stamps.com customer you will receive a FREE 5 lb. Digital Scale. The scale is a $50 value and is yours to keep with no additional obligation. Just pay for shipping and handling (typically $9.99 or less).

$25 Postage Offer

As a new Stamps.com customer you will receive $5 in free postage that you can use during your trial period. After you complete your trial period, you are eligible for an additional $20 in postage. We will give you two $10 postage coupons. You can redeem one coupon per month once you complete your trial.

FREE Supplies Kit

To help you get started we will ship you a free Supplies Kit that includes free postage labels to use with the service (a $5 value). However, you don't need to wait for the Supplies Kit to arrive in order to print postage. You can immediately take advantage of features such as printing shipping labels on plain paper or printing postage directly on envelopes!

Stamps.com will be presenting at the SG Cowen Internet Conference in New York

LOS ANGELES, December 6, 2005 – Stamps.com® (Nasdaq: STMP) will be presenting at the SG Cowen Internet Conference at Le Parker Meridian located at 118 West 57th Street, New York, on Thursday, December 8, 2005. The Company will present at 10:00 a.m. ET and will webcast this event.

The live webcast can be accessed from the web address: http://investor.stamps.com/medialist2.cfm

The webcast will be archived on the Investor Relations section of the Stamps.com website for 90 days. If you have any questions, please call Stamps.com Investor Relations at (310) 482–5830 or e–mail us at invrel@stamps.com.

This message is not an offer to sell securities and is not soliciting an offer to buy securities.

About Stamps.com and PhotoStamps

Stamps.com Inc. (Nasdaq: STMP) is a leading provider of Internet–based postage services. Stamps.com enables over 380,000 small businesses, enterprises, and consumers to print U.S. Postal Service–approved postage with just a PC, printer and Internet connection, right from their home or office. The Company targets its services to small businesses and home offices, and currently has partnerships with companies including Microsoft, CompUSA, EarthLink, HP, NCR, Office Depot, Vendio and the U.S. Postal Service.

PhotoStamps is a patented Stamps.com product that couples the technology of PC Postage with the simplicity of a web–based image upload and order process. To date, over 6 million individual PhotoStamps have been ordered by the customers. PhotoStamps is expected to be available under authorization of the U.S. Postal Service for a second, year–long market test through May 2006.

“Safe Harbor” Statement under the Private Securities Litigation Reform Act of 1995: This release includes forward–looking statements about our anticipated results and available products that involve risks and uncertainties. Important factors, including the Company’s ability to complete and ship its products and obtain or maintain regulatory approval, which could cause actual results to differ materially from those in the forward–looking statements, are detailed in filings with the Securities and Exchange Commission made from time to time by Stamps.com, including its Annual Report on Form 10–K for the fiscal year ended December 31, 2004, Quarterly Reports on Form 10–Q, and Current Reports on Form 8–K. Stamps.com undertakes no obligation to release publicly any revisions to any forward–looking statements to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.

Stamps.com, the Stamps.com logo and PhotoStamps are trademarks or registered trademarks of Stamps.com Inc. All other brands and names are property of their respective owners.