The FDA Bad Bug page http://vm.cfsan.fda.gov/~mow/intro.html
The U.S. Food and Drug Administration's handbook which provides basic facts regarding foodborne pathogenic microorganisms and natural toxins. Good information and a lot of good content.
The Microbiology Network http://microbiol.org/
Links to users' groups on the WWW, mail lists, forums, and file libraries. Major areas of interest are regulatory microbiology in the pharmaceutical, food, and personal care industries.
Virtual Museum of Bacteria http://www.bacteriamuseum.org
The museum provides information for the general public on all aspects of bacteria with integrated hyperlinks to >250 relevant sites. Annotated lists of links are also provided for professional microbiologists