We are finding O'Reilly's Radar an increasingly valuable site/blog to keep up with interesting developments in Web 2.0, publishing and the general Digital Revolution.  Brady Forrest's contribution below is an example.

See http://radar.oreilly.com/archives/2007/05/trends_of_onlin.html

Trends of Online Mapping Portals

Posted: 21 May 2007 04:34 PM CDT

By Brady Forrest

Last week there were several announcements made that show the direction of the online mapping portals. Satellite images and slippy maps are no longer differentiators for attracting users, everyone has them and as I noted last week there are now companies that have cropped up to service companies that want their own ...   more »