New InfoSpace Reward Programs Incentivize Gamers to Play More Mobile Games for Prizes; Frequent Player Points and Tell-A-Friend Rewards Programs Introduce New Ways to Win Prizes.

BELLEVUE, Wash. -- InfoSpace Inc. (Nasdaq:INSP), a leading provider of mobile entertainment, today introduced Frequent Player Points and Tell-A-Friend rewards programs, two incentive programs that reward loyal subscribers with prizes for their participation in InfoSpace's "For Prizes Network" of mobile game tournaments. The "For Prizes Network" is an interactive mobile tournament service created and operated by InfoSpace, in which players are able to compete with other mobile users for prizes. These exciting new programs give gamers increased opportunities to win great prizes and to refer new players to InfoSpace tournament games.

"There are more ways to win prizes than ever before," said Andy Riedel, general manager of games at InfoSpace. "With our new Frequent Player Points feature, it no longer matters if you're the best player or the worst. The more you play, the more you'll have an opportunity to win. With the Tell-A-Friend feature, we've made a game out of inviting friends to join our tournaments. The players who invite the most friends will win prizes."

Currently, InfoSpace offers multiple titles in the "For Prizes Network," including Tetris Tournament for Prizes, Hold 'Em Poker+ for Prizes, Solitaire for Prizes and Boulder Dash Tournament for Prizes.

How the Programs Work

The Frequent Player Points program allows game subscribers to earn points by playing the games with bonuses for being long-term subscribers. Active subscribers, especially those who purchase multiple "For Prize" games, have the greatest potential for earning points that can be exchanged for tickets to monthly raffles for exciting prizes.

The Tell-A-Friend program rewards subscribers for having their friends and family join the competition. Each time subscribers refer a new user to join an InfoSpace tournament game, they earn "referral points" used to rank them in monthly tournaments. The subscribers with the most "referral points" at the end of each month win the tournament and valuable prizes. Tournament leader boards will be tracked online through the InfoSpace Games Web site at http://www.atlasmobile.com/en/tellafriend.html.

Prizes for both programs include Sony PSPs, Sony digital cameras, iPod Shuffles and Fandango Buck gift certificates.

The Tell-A-Friend rewards program is currently available to all subscribers of the "For Prizes Network" games in the United States. The Frequent Player Points program will launch in July, 2005.

About InfoSpace Inc.

InfoSpace, Inc. (Nasdaq:INSP) is a leader in private-label search, online directory and mobile entertainment. InfoSpace consists of two divisions -- Search & Directory and Mobile. The Search and Directory division uses its unique metasearch technology to power a portfolio of branded Web sites and provide private-label search and online directory services. InfoSpace Mobile is a global provider and publisher of wireless content, including ringtones, games, graphics and more, as well as infrastructure solutions that help customers build stronger brands and generate revenue. InfoSpace Mobile distributes its applications through mobile operators, including Cingular Wireless, T-Mobile, Verizon Wireless, Nextel, Sprint, Virgin Mobile, Vodafone, O2, Orange, 3, TIM and Telefonica Moviles. More information can be found at http://www.infospaceinc.com.

This release contains forward-looking statements regarding InfoSpace Mobile's Tell-A-Friend and Frequent Player Points programs and the For Prizes Network games. These forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially from those projected. These statements are not guarantees of future performance and are subject to certain risks, uncertainties and assumptions that are difficult to predict. Factors that could affect actual results include the progress and ongoing development of the proposed Tell-A-Friend and Frequent Player Point programs and the extent of consumer adoption of the proposed programs. A more detailed description of certain factors that could affect InfoSpace Mobile's actual results include, but are not limited to, those discussed in InfoSpace, Inc.'s most recent Annual Report on Form 10-K and quarterly reports on form 10-Q as filed from time to time in the section entitled "Factors Affecting Our Operating Results, Business Prospects and Market Price of Stock." Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this release. InfoSpace undertakes no obligation to update publicly any forward-looking statements to reflect new information, events or circumstances after the date of this release or to reflect the occurrence of unanticipated events.