camtwist is an application that allows you to add special effects to webcam video.a it works with services such as stickam.com justin.tv ustream.tv and skype and adds effects like bubbles flames earthquake and bullet holes sweet.a it requires os x 10.4 and is completely free to use. i dont own a mac but thankfully i found a screencast put together by david over at techrecipes.a theres a youtube vi...
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