Satellite images? So last year. Mashup maps are the hot item again. Here are three map-ups of the center of the universe.

Valley maps for Web 2.0 and the ride home from Yahoo


SF Bay Area Tech Companies
By: Michael Doeff, blogger
This map on Wayfaring.com proves it — dot-coms will make San Francisco the new capital of Silicon Valley. Until Google buys them all.

Valley maps for Web 2.0 and the ride home from Yahoo


Web 2.0 Innovation Map
By: Fourio, web developers (via Jeff Clavier)
Apparently, some Web 2.0 ideas were thought up outside the Valley. Bah, all lies.

Valley maps for Web 2.0 and the ride home from Yahoo


IamCaltrain
By: Cal Henderson, Flickr
What do developers do when Yahoo buys their startup? They map their escape route.