The doctor is in. Or online, anyway. In early September, Google announced that it would be rolling out health information about 900 conditions in the coming weeks. It will include quick, at-a-glance info and easily downloadable pages that users can take to their doctors' offices. Of course, this begs the question: How accurate will the information be? And does this have doctors terrified that ever more patients will be showing up after self-diagnosing themselves with rare diseases they almost certainly do not have?