Then there's the search function of course, which allows you to locate any part of the body by just typing in the name. Like your usual Google search, the drop down is self-populating, so even if you're not quite up to speed on the spelling of "anterior cruciate ligament," the app will still help you find it. Perhaps best of all: no plug-ins. No Flash, no Java. The application runs right in any WebGL supported browser. It can still be a little cumbersome – if you're not zoomed to exactly the right level in some cases (navigating the brain is a good example) it won't always let you click on the right object – but overall it's a pretty smooth experience.