With the news that Internet behemoth Yahoo will buy blogging and content platform Tumblr for $1.1 billion in cash has many analysts, including this one, wondering what will happen next. Yahoo clearly wants to buy its way into the social media elite.  In December 2005, Yahoo bought social bookmarking site Delicious, but it later sold it in 2011 to the founders of YouTube.  In September 2006, it offered to buy Facebook for $1 billion, but Facebook walked away. And Yahoo CEO Marissa Mayer … [Read more...]