I'd like to provide a map based search of map services in a web app.
Ideally, I'd like a web service that displays markers at different zoom levels: local, municipal, county, regional, state or national level. When I click on a marker, I'd like to see a list of urls representing the map services published by that governmental entity.
For example, for a typical state I would expect to see a marker for each county that has public web mapping services. The marker would appear on the county seat, and would contain a url to that counties' map services.
My primary focus is Texas, USA, but any examples of map service map services would be useful.