Here are some anti adware sites. Some adware programs are very hard to get rid of. Be careful what you remove if you have questions after running a scan send me (firstname.lastname@example.org) a screenshot of the programs that it lists and I will tell you which ones to delete.)
http://www.microsoft.com/athome/security/spyware/software/default.mspx (microsoft antispyware beta)
http://www.download.com/Spyware-FAQ/1200-2023_4-5120516.html?tag=txt\ (spyware information)
http://www.doxdesk.com/parasite/ (detection site)
http://www.safer-networking.org/en/index.html (free program)
http://www.lavasoftusa.com/ (choose free version)
http://www.tomcoyote.org/hjt/ ( hijack this free program).
There are lots of others out there that I have not tried but you can look at http://www.download.com/Spyware-Center/2001-2023_4-0.html?tag=dir (usually you can find free programs there)