Cert.org (Technical)

Internet/Network Security - About.com

Security Response - Symantec.com

Security Tango - Follow the directions on this site to rid your computer and to improve performance.

Spyware Warrior - Blog on Spyware

Spyware Warrior Forum

Virus Bulletin

Virus Information Library - McAfee Inc.

Freeware Virus Removal Software

Stinger - McAfee

Freeware Spyware/Adware Removal Software

AdAware or AdAware

Spy Sweeper

Spybot Search & Destroy

Spyware Blaster - Prevents them in advance

WebRoot's Spy Sweeper (for a fee)

List of Anti-Spyware Tools @ PCWorld