Here's a list of sub-forums that i think all of the Forums should have :
1. Rules and announcements
(if you have
vB, then put your rules and policies in the FAQ page instead)
2. Introduction
(a place where new members can introduce themselves to everybody else)
3. Chit-Chat
(an area where users can do some non-technical / off-topic talks...)
4. Suggestions / Feedback
(very important part. you need to know what members want and / or feel about your forum)