Mapdex: The Google of GIS searches

Mapdex is sitting on a goldmine — it’s an index of freely available map servers, making it a tremendous resource for the GIS community (especially students). Now Mapdex blog reports

that ArcIMS servers returned in a search are getting KML links, so that the data can be accessed seamlessly in Google Earth.

This makes Mapdex a sort of Google for GIS data searches.