A playground for GLSL. Seems fun.

A neat browser extension adding some features to Tildes' interface.

A link aggregator community website with a bigger emphasis on longform discussion, invite-only. I've been there ever since Reddit's APIcalypse and while I ended up not actually quitting Reddit over it (though that's becoming increasingly likely with how enthusiastic they are about shooting themselves in the foot on full auto...), I'm enjoying Tildes a lot.