Aptimus To Present At The Roth Capital Partners 17th Annual Growth Stock Conference.

SAN FRANCISCO -- Aptimus, Inc. (OTCBB:APTM), the powerful performance-based advertising network, today announced that company executives will be presenting on Wednesday, February 23, at 3:00 p.m. at the Roth Capital Partners 17th Annual Growth Stock Conference. The event is being held February 21-23, 2005, at The St. Regis Monarch Beach Resort & Spa, in Dana Point, California.

Aptimus President and CEO, Tim Choate, and CFO, John Wade, will present a review of the company's business strategy and historical financial results. The presentation follows the company's fourth quarter and fiscal year 2004 financial results to be announced on February 17, 2005. Aptimus also announced on January 4, 2005, that the company submitted an application to list its securities on the NASDAQ SmallCap Market. The company has since upgraded that application, and now has a pending application for listing on the NASDAQ National Market.

About the Roth Capital Partners 17th Annual Growth Stock Conference

This conference will feature more than 220 leading growth companies in sectors such as Technology, Healthcare, Financial Services and Consumer Products. A concentrated, two-day program will allow institutional investors to meet the executives from a select group of companies that have been hand picked by the Roth Capital Partners research team. 40% of this year's participating companies are presenting here for the first time. The average market cap of this year's presenters is around $330 million, with the median around $185 million. This closely mirrors the average and median market cap for the proposed Russell Microcap(TM) Index which is expected to be around $277 million and $176 million respectively.

To register for this conference, please contact your Roth sales representative at 800-678-9147. Please note that this conference is by invitation only.

For more information about the conference visit: http://www.rothcp.com/2005%20DP%20Conference%20Web%20Site/Roth%20DP.ht ml?content=home

About Aptimus, Inc.

Aptimus Inc. (www.aptimus.com)is a performance-based advertising network, generating new revenues for participating Web site publishers while generating new sales leads for advertiser clients. For advertisers, the Aptimus Network offers a platform to present their offers across an audience of Web site and email distribution channels. Marketers pay only for the results they achieve on a cost-per-click, cost-per-lead, cost-per-acquisition, or cost-per-impression basis, as well as combinations of those models. As a result, marketers can refine their offers and payment models to achieve their objectives. For Web site publishers, the Aptimus Network generates new revenues while promoting offers from known brands in graphical formats that complement the publishers' sites and adds value for their customers. At the core of the Aptimus Network platform is a database configuration and software platform supporting a direct marketing approach called Dynamic Revenue Optimization(TM), which automatically determines on a real-time basis specific advertiser offers for promotion on each publisher's Web site and in each email sent. The company's primary offer presentation formats include cross-marketing promotions at the point of registration or other transactional activity on Web sites, online advertising programs, and email marketing campaigns. Aptimus' current clients include many of the top 500 direct marketers. Aptimus Web site publishers include a diverse cross-section of the Internet. Aptimus has offices in San Francisco and Seattle, and is publicly traded on the OTCBB under the symbol APTM. More information on Aptimus is available at the company's Web site at http://www.aptimus.com.