Turns out the Internet really is a mess of tubes. This summer marks the third anniversary of the YouTube explosion, and since the site's epic takeover of all things video, a server-farm-load of specialized copycats has swiped its sobriquet. Got time to waste? Go tubing. Here's a sample of what you'll find. Warning: Some of these sites show a lot more than adorable puppies.
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Playlist: Animation Vérité, YouTube's 'Final Countdown,' Animal Collective
