Press Release
May 25, 1999

Company Sleuth Alert - MCI Worldcom Registers 'SKYTELWORLDCOM.COM'

Company Sleuth, (, a free online business information service of Infonautics, Inc. (Nasdaq: INFO), today uncovered the following:

Recently, MCI Worldcom, Inc. (Nasdaq: WCOM) of Jackson, Mississippi, a leading provider of telecommunications services, registered the Internet domain 'SKYTELWORLDCOM.COM'. There has previously been speculation in the media that MCI Worldcom could be one of the likely acquirers of SkyTel Communications (Nasdaq: SKYT), also of Jackson, Mississippi, a leading provider of one-way wireless messaging services. For more information on this domain name registration, visit .


Recently selected by PC Magazine as one of the ``Top 100 Web Sites'' on the Internet, the Company Sleuth service is the Internet's leading source of free, legal, inside information about publicly traded companies. Company Sleuth searches the Internet and delivers current events-type financial and business news and information on a particular user's competitors, investments, prospects and clients. With Company Sleuth, users receive a daily e-mail report detailing the business activities, financial moves and Internet dealings of selected companies -- often before they are officially announced or reported.

About Infonautics
Infonautics, Inc. (NASDAQ: INFO) is a leading Internet information company that provides online information services to schools, libraries, consumers and businesses. The Infonautics Network of web properties generates more than 20 million page views per month and reaches almost 2 million unique visitors each month. According to the February 1999 Media Metrix Web Report, the reach of the Infonautics Network places it in the top 75 web properties on the Internet. Its award-winning Electric Library® service ( was the first reference service of its type on the Internet, and today is one of the fastest growing electronic reference products for schools and libraries, serving more than 15,000 institutions in all 50 states. Electric Library is also one of the largest paid subscription sites on the Web with more than 75,000 paying subscribers. The Company also provides e-commerce online archive services to major publishers and other content creators. Infonautics was founded in November 1992, and is headquartered in Wayne, PA.


 Copyright 1999 Infonautics Corporation