Your Stamps.com $80 Offer

Your Stamps.com account automatically starts with $5 free postage to use during your trial and a free Stamps.com Supplies Kit ($5 Value) with address / postage labels and a user manual.

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 (below $9.99).

You will also receive coupons for $20 in postage redeemable after your trial period ($10 per month for two months). Total value of your offer is $80!

Stamps.com will be presenting at the B. Riley & Co Investor conference

LOS ANGELES, March 9, 2005 – Stamps.com™ (Nasdaq: STMP – News) will be presenting at the B. Riley & Co. Las Vegas Investor Conference at the Venetian Resort Hotel Casino in Las Vegas on Wednesday March 16, 2005. The Company will be presenting at 9:10 a.m. PT and will be available for one–on–one investor meetings following the presentation.

About Stamps.com

Stamps.com (Nasdaq: STMP – News) is a leading provider of Internet–based postage services. Stamps.com enables customers to print U.S. Postal Service–approved postage with just a PC, printer and Internet connection. The company targets its services to small businesses, home offices, and individuals, and currently has partnerships with companies including Auctionwatch, CompUSA, Earthlink, HP, Microsoft, NCR, Office Depot and the U.S. Postal Service.

“Safe Harbor” Statement under the Private Securities Litigation Reform Act of 1995: This release may contain forward–looking statements that involve risks and uncertainties. Important factors, including the Company’s ability to complete its products and obtain 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, 2003, 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.