Twitter

A social network centered around a single question: "What are you doing?" Get instant updates on what your friends are doing via SMS or the web.

Insane in the mundane! Most people are boring and not worth stalking (do I really care that you are lying in bed watching "Lost" reruns) but Twitter could be useful from a social point of view (can I lie in bed with you and watch "Lost" reruns?). Anyway, here are some other useful ways to use Twitter besides stalking and spying. K.I.T, mi amores!

Editorial note: Whoa! You've found a super-old post here on BuzzFeed, from an earlier era of the site. It doesn't really represent where we are anymore, and may in fact be totally broken, but we're leaving it up as a part of our early history.

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