Free! WIKIBRAINS is a bit like "I spy" for the Internet -- only once you've identified the object in question, you can easily recall all of the descriptions and associations from everyone else who "brainstormed" their way to the same object. Take "TED" for example. Other WikiBrainers associated "online education," "Sergey Brin," and "ideas worth spreading" with the term. Then there are the images and video clips which surprisingly refer to a certain crazy, cuddly teddy bear before any mention of Sir Ken Robinson. We'd like to compare it to InstaGrok, but chances are you'll go deeper and broader into a topic before you actually understand anything. It's exactly how brainstorming should be.