Hopefully it'll be as funny as last year. Streams:
http://thebestgamers.net/
http://www.ustream.tv/gametrailers
http://www.youtube.com/e3
http://e3.gamespot.com/press-conference/nintendo-e3/ (That will show all the times and junk for the other conferences.)
Nintendo stuff only:
http://www.nintendo.com/nintendo_direct

Pick your poison.

Fun stuff:
E3 report cards (courtesy of /v/, of course.):
http://imgur.com/ffLNT
Drinking game:
http://imgur.com/VbKRi,kt5JY,H8Cc1#0