
iGetcha.org is a suggested opensource and free software directory for the technological sustainability of nonprofits. It's also a simple, non-techie shortlist to assist organizations with a SOHO.
The good thing about Spybot Search and Destroy is that it has been around for a while and it is known to be a decent spyware prevention software. The bad thing is, an application that it runs, teatimer.exe, takes a lot of your processor at times. Although some of our volunteers use Spybot Search and Destroy with other Internet protection software, iGetcha does not recommend to use it if you rely on your CPU a lot.
Please note: Spybot search and destroy is free software that works on only Windows based computers.