But something definitely started to click this summer. As you can see by the charts, that is when growth really took off. U.S. pageviews were only 373 million back then. In August, it passed its one billionth cumulative post. All those posts add up. The more people who use the super-easy blogging service (there are nearly 9.7 million different Tumblogs now), the more overall readers the platform attracts, which creates a virtuous cycle of more publishers.
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Authors: Erick Schonfeld