TechCrunch reports that Yahoo's string of acquisitions may soon include Tumblr : "The Wall Street Journal is now reporting via Twitter that the rumored $1.1 billion cash acquisition deal for social blogging site Tumblr has been approved by Yahoo’s board of directors. The Tumblr acquisition was rumored last week, with a price tag reportedly north of $1 billion, which appears to be accurate if the WSJ’s sources are correct." The article notes, too, that "Yahoo had only $1.2 billion cash on hand as of its most recent quarterly earnings, which makes an all-cash offer for Tumblr a lot more of a stretch than it would be for someone like Apple, or even Facebook, which acquired Instagram for $1 billion in a mix of both cash and stock."