Map a List turns Google Spreadsheet information into Google Maps placemarks. The finished product is a Google Map of the information you've selected from your Google Spreadsheets.
To create a map from your spreadsheets you need to register for a Map a List account and give it access to your Google Docs account. Map a List then walks you through each step of selecting a spreadsheet, defining the parameters for your map, and choosing placemarks. Just like in Google Maps you can customize the placemark icons that are used in your Map a List displays. Your maps can be shared publicly or privately. Your maps can be downloaded as KML files to use in Google Earth.
Applications for Education
Map a List could be a neat tool to use for a classroom genealogy project. Create a spreadsheet form into which students enter information about where their ancestors came from. Students could enter the information themselves or they could share the link to the form and ask their parents or grandparents to fill in some information Then use Map a List to show the distribution of ancestries of the students in your classroom.