Skype is putting together a laughter chain, and you're invited to be a part of it! Watch the chain (the latest version is much longer than this video) and record yourself laughing along with those who've gone before. You'll recognize the distinctive laugh from the guy in the classic video Dad at Comedy Barn. Look under "help" for the instructions. Link -Thanks, Alex!
Guy!!! Hes the one in a Yellow and Black Striped shirt.