Is there a way to "hide" a forum?

[Tomm M]

Expanded on above:

Make a category, and make sure that in it's permissions "Can View?" is deselected for all groups (or those who you don't want to see it by default).

Then, add a child forum with whatever permissions you like.

The category can't be seen from the Index, but as Matt says, if you type in the URL then you can see the forums. I think you do it like that anyway...