Red Hot StumbleUpon Hits 1 Billion "Stumbles" a Month

Posted 04/11/2011 at 7:21am | by Paul Lilly

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Social networking sites like Facebook and Twitter typically hog all the attention, but give social news sites StumbleUpon their due. The discovery engine now serves up 1 billion stumbles per month after closing out its busiest month ever. Making that figure even more impressive is that the fact that just one month ago, StumbleUpon announced 800 million stumbles, so the site was able to add another 200 million in a short period of time.

StumbleUpon's history is an interesting one. Online auction site eBay acquired StumbleUpon back in 2007 for $75 million in cash, a move that many questioned, including eBay itself. StumbleUpon's founders then bought the site back in 2009 for $29 million. A little over a month ago, StumbleUpon announced it completed a $17 million Series B round of financing, which "will be used to continue to invest in the company's core discovery technology, expand to new platforms, and grow the employee base."

In short, StumbleUpon's founders cashed out with a tidy sum, bought its baby back for less than half of the sales price, and continues to receive millions of dollars in funding.