I came across this cool Web 2.0 Innovation Map on Google Maps Mania. Zoom into your part of the country to find Web 2.0 sites/services in your area. A couple of weeks ago, I created something similar to this on a much, much smaller scale (SF Bay Area only) on Wayfaring.
![](http://static.flickr.com/41/93386110_0e46e210a9_o.jpg)