Sadly I think it did get shut down. I can only speculate...but obviously it costs money to keep a site like that running, and with how small the tickling market is...it just may have not been profitable at all.
It's too bad. BAC is truly the god father of tickling illustration, imho...and I would love to see more from him. But if it don't pay the bills it don't pay the bills. And in this economy it's tough if you're creating tickle art for much more than a hobby.
BAC...if you're out there...we love ya. Always been a huge fan of yours and happy to buy your next offering.
B