CCC #16: Judgment day

Oh no, it's that time again! It reminds me how many cool things I planned to build half a year ago. And how much I actually achieved. It makes me feel miserable. Hi, I would like to collect contributions for a new edition of the Haskell Communities and Activities Report!
Reminder: you have a few more days to submit your HCAR entries!
Published on October 28, 2012