Six months after it was first introduced as a beta product, Google Earth 4 is now out. Along with a new interface, we've added tons of multimedia content that's been created by online communities plus content from such established sources as Discovery Networks and National Geographic. Be it photo-sharing through Panaramio, hiking trails from Tracks4Africa, Wikipedia articles, or restaurant reviews from Yelp, you can explore all this information in Google Earth's 3D view. And it now also includes the highest-quality textured 3D models of buildings from the 3D Warehouse as a layer ("Best of 3D Warehouse"). For example, check out Canary Wharf in London, landmarks in Manhattan, or the entire Denver downtown.