Only two sites which updated recently: Oldschool and my own.
I wanted to check which game was added at oldschool, but it seems, while writing this update, the site is not reachable. I hope this is only a temporary thing.
I myself added The Catacomb Abyss (shareware version I think ) The game is quite cool 'cause it's one of the first 3D first person shooters. (even before Wolfenstein!)