As if the David Rumsey Map Collection (http://www.davidrumsey.com/) wasn't cool enough, I am just now discovering the super-neat MapRank feature. This built-in app allows the user to zoom in any region in the world (for example, Baltimore, MD), and view all the maps available in this archive for that region in an easily browse-able column to the right of the search field. Thumbnail previews of the maps, along with dates and other crucial info can also be seen in the list before viewing a full-size map. The list can then be narrowed to a time frame (from 1690 to present) or sorted by a key word/person.
A worthwhile peek for aspiring historians and of course, social studies teachers!
A worthwhile peek for aspiring historians and of course, social studies teachers!