If you are running a Windows based Operating System, I recommend that you go to Lavasoft’s Web site and download Ad-aware 5.5. It’s eye opening how many spyware type things I found in my machine with it. It identifies processes, registry keys, and cookies that are being used to spy on you without your knowledge. It then gives you the option of deleting the offending items. If you are concerned about things like Gator and Cydoor, this is a great place to start.