Wow, a lot has happened since I've been gone.
My server went down while I was gone, but now it's back up and I see the list is slightly larger than when I checked it last. Anyway, I encourage people to list your sites here so we have a "master list" of participating TGPs:
http://www.babe-tgp.com/tgp2/
------------------
The Unofficial TGP2 List - Add your site!