PeerBlock is an advanced IP blocking utility. In plain words, it lets you control how your PC interacts with other computers over the Internet, letting you block servers and sites known to be troublesome or even dangerous. It lets you choose what to block, and you can also import or create your own lists. PeerBlock is open source freeware maintained by the PeerBlock project.
When you first run PeerBlock, a wizard helps you set up its options, though you can change them later. These include what you want to block; by default, PeerBlock blocks anti-P2P organizations, ads, spyware, and educational … Read more