[johnhiler]

What Chris suggests is definitely possible! I have four bbPress installs sharing a single user database… along with a WordPress install and a MediaWiki one. I’ll probably be up to 6 or 7 bbPress installs on the same user database by the end of the summer!

It’s not so bad to maintain, but it’s definitely worth is so far – especially since the functionality of each install is very different! For example, one bbPress install supports a Classifieds feature… while another one is a standard message board. If the functionality across the bbPress installs was more similar, I’d just combine them into a single installation…

Good luck!