You never know when you’ll have to defend yourself against one of these bloodsuckers, so be prepared to bring a vampire to his knees. Found at Yahoo! Video.

Not nearly as menacing as the real thing. Found at CollegeHumor.

This was created by a math professor at Biola University for his Nature of Math class for Halloween. The experiment mixes edited video with live action. Found at YouTube from MDWeathers.

There are so many options for a fashionable werewolf these days…you’re gonna love the way you woof. Found at Funny Or Die.

Release your inner wild thing with a costume based on the classic children’s book. Found at Yahoo! Video from Howcast.

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WORK WARNING: Includes mild profanity.

30 Days of Night looks awfully good, but then I’m a sucker for vampire movies (yeah, yeah, yeah, yeah; pun intended). Here’s the trailer for what looks to be the best Halloween movie this season with an additional short documentary about the history of vampires:

I love Common Craft’s In Plain English videos. Here’s one for Halloween: