I want to know what chat site site that is the most resourceful and worth singing up at out of the three?
Facebook, MySpace, Twitter.
Which one is the best?
The *best* chat site is not accessed through the browser.
Get Silverex for Windows (it's free software) or Colloquy for Mac and use IRC! There are plenty of IRC chat networks out there, with channels (chat rooms) on *every* topic, and every topic in-between, with people from all over the world.
