Map a List

http://mapalist.com/
Map A List is a neat tool that combines the power of Google Spreadsheets and Google Maps or Google Earth. Using Map A List, students can create and customize Google Maps of addresses or locations. Students can visualize geographic data on a Google Map or in Google Earth.
First, students enter a list of addresses or places in a Google Spreadsheet, as addresses are updated or modified in the list, the map is automatically updated.
Map a List would be a great tool for tracking history battles and events, mapping a Flat Stanley project, or noting the countries of their family ancestry.