This is the worlds largest phpBB based forum.
http://www.gaiaonline.com/forum/index.php
This monster uses over 80 servers to keep it running. It's truely is fantastic how diverse things can be when people put the effort it.
Gaia has 906,191,280 articles posted with 5,743,103 registered users.
Most users ever online was 86,738 on Thu Jan 04, 2007 3:00 pm