An open-source bittorrent client, Deluge, now provides an internal, anonymizing browser to protect its users from overzealous ISPs. The client runs on Windows, Linux and OS X. From the site: "Everyone knows that it is common practice for ISPs to do their best to either block or throttle bittorrent users. We believe that this is wrong and unethical, as there are many legal uses for bittorrent. If an ISP is throttling or blocking bittorrent traffic, you can pretty much bet that they're tracking which users visit bittorrent-related sites so that they can better block or throttle those users."