Make your own map-based mashup

Make your own map-based mashup: "Map-based mashups abound these days. Mashups require services that can be mashed up. Location-based mashups need services that provide boundary information. With Web-based mapping providers, you can easily create a map-based mashup with little or no capital investment. In this article, learn how to create a KML boundary service from an ESRI shapefile to be used in mashups."