Famitracker 4 Life
I upload music I finish to my soundcloud and youtube channel, lately it's been extended/polished up versions of OHCs I've done at thasauce:
http://www.soundcloud.com/patashu
http://www.youtube.com/user/patashu

Thasauce OHCs being the one hosted every thursday here:
http://compo.thasauce.net/compos/view/OHC

I am working on NSFPlay Synthesia, which is a hack for rainwarrior's excellent NSFPlay 2.3 which displays a Synthesia-like scrolling note data visualizer in place of the keyboard visualizer:
http://famitracker.com/forum/posts.php?id=4220

I also like rhythm games and roguelikes, speedruns and TASes (though I don't do them myself), maths, science and puzzly/logic things.