Tetrinet
I don’t believe how I got everyone hooked onto Tetrinet (download here). It started yesterday when my cousin was taking a break during uni, and I was at home. We got desperate (he didn’t bring TA along :), and so I suggested Tetrinet. As expected, his reaction was “Huh? TETRIS??!?”. We were too desperate, though, and we ended up playing it anyway. By the end, he was quite enjoying it. Over the last two days I’ve been passing the URL to everyone and must’ve got about 7-8 people hooked on it :), maybe not hooked, but at least playing it. I’ve also had to explain how to play 8 times, which is quite a bugger, but I type fast so it doesn’t matter all that much.