Sadly, the only forum I really knew that was using it was coreforums.net (but it now directs to the thread)
You might want to take a look at vBadvanced (
www.vbadvanced.com ) as well, and there are some other offsite portals that are not found here, and ARE NOT offical Jelsoft products(just like the ones here, they are not offical products), such as vBportal, MKPortal, and I believe there might be one or two others of mention that are not coming to me at this moment.