Yahoo Tumblrs for Cool: Board Approves $1.1 Billion Deal as Expected – Kara Swisher – Media – AllThingsD Link May 20, 2013 Robby Yahoo Tumblrs for Cool: Board Approves $1.1 Billion Deal as Expected – Kara Swisher – Media – AllThingsD So the hot new rumor is that Yahoo is buying Tumblr. Wait, for some reason this seems familiar.