PeerBlock - PeerBlock lets you control who else your personal computer "talks to" about the Internet. By opting for correct lists of "known bad" computers, you can obstruct communication with advertising or perhaps spyware oriented servers, personal computers monitoring your p2p routines, computers which have recently been "hacked", even entire nations around the world! They can't get involved to be able to your computer, and your current computer won't try to be able to send them anything both. And furthermore, it's no cost! PeerBlock is actually a continuation regarding PeerGuardian.