Social Aggregator RebelMouse?s First Week: 12K Sign-Ups, 8K Active Websites

RebelMouse, the social media aggregator founded by former Huffington Post CTO Paul Berry, launched a little more than a week ago. We missed out on covering it (apparently because Berry's email got lost in a vacationing reporter's inbox), but there was still a bunch of articles ? and more importantly, plenty of user sign-ups.

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