What follows aren't complete reviews of these sites and everything each has to offer. These are only reviews of their community discussion forums. I tried to stick to sites running traditional forum software, like phpBB and vBulletin, as opposed to comment blogs, with a few exceptions here for notorious blogs like Daily Kos, Huffington Post and Free Republic. Here you'll find forums on the left, forums on the right, and forums in the middle. Thanks to everyone who took time to build forums and recruit members. Your efforts have helped foster debate. 1. Whistle Stopper Political Forums Membership: mixed 2....