Back in the day, a decade ago, we discovered media - news, information, or service - through brands: We went and bought the newspaper or magazine or turned on a channel on its schedule. That behavior and expectation was brought to the internet: Brands built sites and expected us to come to them. Now there are other spheres of discovery - new spheres that are shifting in importance, effectiveness, and share. Thanks to new tools - Twitter, Facebook, Buzz - human links are exploding as a means of discovery, which gives lie to the old-media complaints of Rupert Murdoch et al that aggregators are stealing their content. Facebook, according to Hitwise, is the fourth largest referrer of audience to media. Bit.ly alone causes two billion clicks a month, double Google News’ impact. Soon Buzz will be causing many links (teaching Google what’s hot and relevant, which is a key reason to start the service). And, of course, bloggers have shown the way as curators. Thanks to our newer, easier tools that enable links, humans are becoming a huge force in content discovery, reducing search’s and algorithms’ share and dominance.