Tumblr Hits Quantcast’s List Of Top 10 U.S. Networks

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http://techcrunch.com – Tumblr is announcing today that it has broken into the top 10 networks in the U.S., according to third-party measurement firm Quantcast. According to a post from Tumblr CEO David Karp, the site now reaches a worldwide audience of 170 million people. [Updated, see below] No additional details were provided on what that means in context – instead, the post merely linked to this page on Quantcast’s website which says Tumblr now sees 202,637,856 visits per month in the U.S. and 616,776,768 visits worldwide. The reach in terms of people per month indicated here is 60,803,592 in the U.S. (IT news)