As one who lives "on the road" (full time RV'ers), I think this is a great idea. We already have a good network of other travelers who work together and provide information and assistance. This has proved invaluable to many who have had difficulties while in unfamiliar areas.

Please make updating of whatever system you use easy and automatic if possible. Here is a url of one system we use.

http://map.datastormusers.com/user2.cfm?user=4746

It provides a map with the location of other participants. Neat site and easy to update our location.

Another is the standard ham radio locater done through the amateur position reporting system (APRS) which is an automatic system using ham radio and special beacon transmitters. It utilizes both terrestrial and space based systems. Check it out here.

http://www.findu.com/cgi-bin/find.cgi?n1ahh

Both are limited to a particular group of folks. The first are satellite internet users, the second is limited to ham radio operators.

Both provide very precise locations which may not be suitable for some folks. But it allows us to find each other as we migrate from place to place. Both can are linked to google maps.

Just thought it would be useful to see several examples of similar groups and how they display their information.

Count us in.

Nomad.