Trend Micro House Call Online antivirus and Spyware scanning and removal

Symantec Security Check Online antivirus scanner and security update check

Microsoft Antispyware Free Real-time anti-spyware scanning software

Microsoft Update The new version of Microsoft’s “Windows Update.” This site updates nearly all installed Microsoft products.

Gibson Research Center A variety of security information and tools. Use the “Shields-up” tool to test your computer’s firewall.

DNS Stuff A number of handy tools for gathering information about internet sites, or even your own IP address.