The Microbiology Network is a free service sponsored by several microbiology companies with the objective of providing a communication resource for microbiology and biotechnology professionals. The site offers directories of user groups and microbiology-related mailing lists, and an extensive archive of useful information that includes programs, free databases, and newsletters. The site also hosts the Microbiology and Virology branch of the WWW Virtual Library. This well-organized site is a good place to begin looking for on-line microbiology resources and discussions.