According to Webroot Inc. and listed in the Inquirer, here are the top ten spyware and adware threats based on detection as well as potential impact.
1. CoolWebSearch
2. Gator
3. 180 search asst.
4. ISTbar/AUpdate
5. Transponder
6. Internet optimizer
7. BlazeFind
8. Hot as Hell
9. Advance Keylogger
10. TIBS Dialer
Read how each works at the Inquirer Website.