Using CMaps Analytics App, you can create map layers from Google Docs and display map points or regions.
https://youtube.com/watch?v=NjLa9V7wlYE%3Fversion%3D3%26f%3Duser_uploads%26d%3DAT2ca1kQxTtL70xxV7Hkg_QO88HsQjpE1a8d1GxQnGDm%26app%3Dyoutube_gdata
Visit: http://www.youtube.com/watch?v=NjLa9V7wlYE&feature=youtube_gdata_player
