Virus Protection

Installing virus checking software on your computer is a basic and inexpensive precaution.Virus checking software will scan for all known viruses and protect you if it finds one. Nearly all virus checkers have a web site dedicated to keeping your virus checker up to date - you log on regularly to update.

You can get information about their software from the two main players:
McAfee
Norton Antivirus from Symantec

Both companies have extensive indexes to viruses:
McAfee Virus Information Library and Symantec Virus Encyclopedia

For links and reviews of more antivirus software try:
About.com: Antivirus software
PC Magazine: antivirus product reviews