From a very humble beginning, ShiaChat is now the largest Shia forum in the World. I've been on ShiaChat for a very long time. The earliest I can remember is 1999. It's now 2011 (a little over 11 years). Back in the old days, ShiaChat was a smaller forum hosted on a free site.
In July of 2002, we moved from the Ahlul Bayt Discussion forum (I believe it was hosted on the Ezboard) to the new dedicated site (server) at http://www.ShiaChat.com