A Japanese website has come up with a trend map for Web2.0. Its modeled on, of all things, the Tokyo Metro System map. The various lines in the map are best described as content themes (insider blogs/political blogs/music sites) or specific technologies (search/social networking/p2p sharing). The 'stations' on the lines are the websites themselves. They've rated each website with the generation of technology used to build it (1.0/2.0/2.5? :-)) and the future prospects (sunny, cloudy, stormy?).