Crimson Eye

This is now a resource for tutorials. I've consolidated the guides I've found useful, let me know if there's guides that you think should be added.

WCG NA Finals:
Game 1: http://www.ustream.tv/recorded/9507051
Game 2: http://www.ustream.tv/recorded/9508719

Reginald's USEFUL videos:
Tristana Tutorial
http://www.youtube.com/watch?v=4CukG2OCOsk
Shaco Tutorial
http://www.youtube.com/watch?v=tfAqN2d6VPQ&feature=related
Poppy Tutorial
http://www.solomid.net/forums/index.php?/topic/2727-poppy-tutorial/

Coldturkey's:
Katarina breakdown -> why AD is > AP
http://www.youtube.com/watch?v=Ws7eJiEpOmE

Dan Dinh's:
Twitch Tutorial
http://www.youtube.com/watch?v=yB1KYtiWzog
Karthus Tutorial
http://www.youtube.com/watch?v=ygjeFj_GL5s

Faro's:
Udyr
http://www.youtube.com/watch?v=oipjo6O4vIk

Hyfe's Nasus guide:
http://leaguecraft.com/strategies/guide/2248,Hyfe%27s+Guide+to+the+Competitive+Nasus
2v2 tutorial: http://www.youtube.com/watch?v=XmUsC1s2yeM&feature=related
1v2 tutorial: http://www.youtube.com/watch?v=GbxNZp3-xSM&feature=related

Some general tips (last hitting, wards, map awareness etc)
http://www.couchathletics.com/content/seven-habits-highly-effective-summoners
Being aggressive (IMO the most important factor in improving your game)
http://www.couchathletics.com/content/who-dares-wins-intelligent-aggression-lol
How not to play like a pussy
http://www.leagueoflegends.com/board/showthread.php?t=71443

Best livestream for high elo LoL play
http://www.clgaming.net/index.php?page=livestream

Eve guide requested by Wrayth:
(Disclaimer: If you absolutely positively have to play this terrible terrible champion, this is imo, the only way to play her)
http://www.leagueoflegends.com/board/showthread.php?t=23528

You're awesome and I love you.

All these videos are win The Poppy and Shaco one helped me alot

that condon guy is awesome lol

lots of updates including WCG north america finals replays for team Epik vs Counter Logic Gaming.