Tumblr Starts Showing Native Ads on it’s iOS & Android Apps

According to AdAge’s Cotton Delo, advertisers picked to kick-off Tumblr’s new foray into a growing mobile ad market include GE, Warner Bros. and ABC. Perhaps an anecdotal indication that Karp’s stomach doesn’t turn at the thought of using advertising to monetize anymore, is the lack of any Pepto ads to kick things off.