It's being reported Yahoo bought Tumblr for $1.1 billion. You may recall Instagram was profiled on HighScalability and they were also bought by Facebook for a ton of money. A coincidence? You be the judge. Just what is Yahoo buying? The business acumen of the deal is not something I can judge, but if you are doing due diligence on the technology then Tumblr would probably get a big thumbs up. To s