Overlap Maps is a free service that can be used to quickly compare the size of countries, states, provinces, and some bodies of water. To create a visual comparison of two countries select one country from the "overlap this" menu and select one country from the "onto this" menu. The comparisons you make are displayed on a map. You can make comparisons from different categories.
a wizard for creating and managing customized
Google maps of address lists
cool features include addresses come from your own Google spreadsheets
modify your address list and maps are automatically updated;
done so daily, or on demand
privately be the only viewer of your maps,
or publish them and show them on any website
access the address lists and maps from anywhere
it's easy, no code required
it's free
download KML of your maps / export them to Google earth
The over 120 historical maps in the Google Maps Rumsey Historical Maps site have been selected by David Rumsey from his collection of more than 150,000 historical maps; in addition, there are a few maps from collections with which he collaborates. (more ...)
This is a browser-based tool with versatile features that combine photographs, videos, and blogging on interactive Google Maps and Google Earth. The tool features a chronological timeline that can be used for elaborate representation of school activities, presentations, and projects.