hosted forums / subforums

[mjames]

Well, you could cloak the URL so it stays the same on those hosted sites or you could do it with invisible frames (easiest way). The frames will not show to your users, but it'll result in them having their hosted site URL in the address bar.

Additionally, you could use vB's co-branding feature to give each site a custom look. Just link to the different style sets for each hosted site.