Spyware

I get asked this question a lot. What can I use to help with Spyware and virus's. I usually say they should get a Mac. But if you on a PC and need something and don't want to spend any money. Try the following for spyware:
Lavasoft Ad-Aware, http://www.lavasoftusa.com/. When you install, you will get a drop down asking for a registration key, just skip this to install the free version.
Malware Sweeper

For Virus:
AVG
Avast

If your using Firefox, you should download SiteAdvisor from McAfee. This little plug-in will tell you how safe the sites are that come up in your searches. Very very useful.