Stamps.com Announces PhotoStamps Successfully Completes Market Test

PhotoStamps Now Available in Seven New Denominations; Perfect for Special Events and Weddings

LOS ANGELES – May 18, 2009 – Stamps.com® (Nasdaq:STMP), the leading provider of online postage and shipping software solutions to approximately 400,000 customers, today announced that its product PhotoStamps® has successfully completed its market test and the product is no longer in market test status. Since Stamps.com launched PhotoStamps in 2005, more than 70 million PhotoStamps have been shipped to customers.

“Consumers love using PhotoStamps to share treasured moments and to make their special mailings even more personal,” said Stamps.com president and CEO Ken McBride. “We are pleased that the market test for PhotoStamps has been completed successfully.”

Stamps.com also announced this week new developments in the PhotoStamps product line at the National Stationery Show in New York City. PhotoStamps are now available in seven new denominations that allow customers to mail heavier and odd-shaped mail pieces. These new special-event rates are also available to PhotoStamps partners and resellers, including digital photo companies, stationers, photographers, designers and more. The enhanced selection of PhotoStamps postage rates increases the ability of partners and resellers to offer the right product to their customers. Customers mailing wedding and other distinctive pieces can now use PhotoStamps with the accurate rate denomination. Visit Stamps.com at booth 2362 at the National Stationery Show May 17-19, 2009 to learn more.

About Stamps.com and PhotoStamps

Stamps.com (Nasdaq: STMP) is a leading provider of Internet-based postage services. Stamps.com’s online postage service enables small businesses, enterprises, advanced shippers 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 PC Postage partnerships with Avery Dennison, Microsoft, HP, Office Depot, and others.

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. Customers may create full custom PhotoStamps with their own digital photograph, or they may choose a licensed image from one of many PhotoStamps collections such as the collegiate collection. Since launching PhotoStamps in May 2005, more than 70 million individual PhotoStamps have been shipped to customers. Stamps.com currently has PhotoStamps partnerships with Apple, Google/Picassa, HP/Snapfish, Costco, Adobe, and others.

“Safe Harbor” Statement under the Private Securities Litigation Reform Act of 1995: This release includes forward-looking statements about our anticipated results and our PhotoStamps spend that involve risks and uncertainties. Important factors, including the Company’s ability to complete and ship its products, maintain desirable economics for 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 year ended December 31, 2008, 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.

Stamps.com Investor Contact:
Stamps.com Investor Relations
(310) 482–5830
http://investor.stamps.com

Press Contact:
Dena Cook
Brew Media Relations
(310) 526–8576
dena@brewpr.com