If your customers are curious as to which forums they should use, direct them to BBResource (http://forums.bbresource.com), a new free service which lists many different forum software/services, both free and commercial, and provides an impartial atmosphere to discuss them as well.

We also have forum software developers and their staff on our member list. We currently have developers for

ikonboard
Invision Power Board
NavBoard
OpenBB



Edit: Note to Moderator: I believe this falls under the forum rules. I checked them and they did mention

web-related services to be offered

If my post was a violation, please accept my apologies

Very nice looking forum, too bad their are already a few out there.