Twitter announced its first advertising product, Promoted Tweets, and at its Chirp developer conference reported 105 million registered users and 300,000 new sign-ups a day.
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140 characters and the Fail Whale
Twitter turned four in 2010 and became the internet's newswire. Users sent about 50 million tweets a day in February and roughly 90 million a day by September, the Library of Congress agreed to...
