With people sending 175 million tweets a day, some are bound to be read more than others. And nothing spells crack for the social web more than a tweet coming from a celebrity. We've gone through the feeds so you don't have to and rounded up 25 kinds of public figures who can't step away from their smartphone. We can't guarantee they're witty, or even that they're useful or fun, but they are downright interesting. 

Written by Jill Krasny (@jillkrasny)

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