At its first-ever developers conference — known as Chirp — which is being held in San Francisco today, Twitter co-founders Biz Stone and Evan Williams provided some hard numbers behind the growth and size of the social network. Here are some of the most important ones we’ve collected so far:
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105,779,710 registered users
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3 billion API calls a day
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175 employees
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600 million searches per day
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300,000 new users per day
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180 million unique visitors per month
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37 percent of active users use Twitter on their phones
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75 percent of traffic comes from outside Twitter.com
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100,000 registered applications
Thumbnail photo courtesy of Flickr user lrargerich
