http://www.infoplease.com/ipa/A0872842.thml Computer Virus Timeline.  This site from Information Please has a comprehensive timeline of viruses, starting at 1949.

http://us.mcafee.com  McAfee’s Web Site.

http://www.safer-networking.org Spybot Search and Destroy.  This sites has information about downloading and installing Ad-Ware.

http://securityresponse.symantec.com Symantec’s Virus Information Web Site.

www.viruslist.com VirusList. This site gives listings and related information on the latest computer viruses.  In English and Russian.