Informationarchitects have published a large map on web trends for 2007 and beyond. The 200 most successful websites on the web, ordered by category, proximity, success, popularity and perspective being mapped to the Tokyo Rail system (c.f. boing boing). Although I don't aggree with some of the facts, they've done a great job in visualizing the properties and the interrelatedness of the depicted websites. Actually, I don't really agree with their 'Web x.x'´-indicator for x.x > 2...Anyhow, they have also provided a clickable online version as well as an A3/pdf and a MacOSX screensaver....
