The Klein Four Group are a mathematically inclined a-Capella group from Northwestern University's math department. So far I heard only one of their song - "Finite Simple Group (of Order Two)" which is very funny, catchy and fun. I'm looking forward to hear the rest of their songs.

These are audio/video recordings of talks from the recent Webstock conference. They include a talk by Ben Goodger about Firefox, a talk about Microsoft Internet Explorer 7 and many other talks.