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This is an up and coming site for halo discussion that isn't cluttered by "you g8t pwnze0r0d" and "when is DLC coming" and "cheaters suck" where you can talk about Halo and get good input from others. Check it out...AllHalo.com
Bunch of videos have been put up also.
Great source for glitches and mods also.
........vids no work