Blogging site Tumblr, purchased last year by Yahoo for $1.1 billion, has announced its first TV ad partnership. The deal is with Viacom, which plans to pitch cobranded campaigns on Tumblr to marketers tied to programming for cable networks including CMT, Comedy Central, MTV, Nickelodeon, Spike, TV Land and VH1. Viacom will offer campaigns to marketers during the 2014 upfront season that will combine Tumblr’s ad products with content developed by Viacom. Continue reading Tumblr Ad Deal with Viacom to Launch with MTV Movie Awards