2. Former world number one Woods has not won a single tournament since 2013 and missed most of the last year recovering from surgery on his back. However, his name alone continued to bank him millions. He earned pound 31 million from endorsement deals with brands including Nike and Titleist, placing him 12th in the list of top earners.
5. From the beginning, social networks have been effectively walled off from the Internet. The treasure trove of content on Facebook, for instance, doesn't generally show up on Google (GOOG). But does it have to be that way? Wouldn't it be convenient to see Twitter search results automatically displayed alongside a standard Google search, for example? And why, for instance, don't the latest tweets about a restaurant pop up when you're searching Yelp (YELP)? The competing interests of different networks sends this content behind proprietary walls, but a number of tools offer creative ways to bridge the gulf. (Full disclosure: My company has developed one such tool.)