Just want to share some statistics about forums and forum users: 1) There're one million forums on 40,000 forum sites. 2) You'll find 50-100 sites that have threads related to any topics. 3) 50% of relevant threads are usually on 10 sites. 4) Forum users are 3 times more likely to proactively recommend a particular purchase to someone else, and 5) Forum users are 3 times more likely to share links.