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Yahoo in talks with Tumblr, AllThingsD reports

An AllThingsD report that cites sources close to the situation says Yahoo is in serious talks with Tumblr regarding a strategic alliance, or a potential outright buy of the company. The report cites sources that say this isn't the first time Yahoo CEO Marissa Mayer has been interested in Tumblr, saying that since taking over at Yahoo, Mayer has met with Tumblr executives, including founder David Karp.