Revolutionary War Animated
From the site's main page:
If a picture is worth a thousand words, a good animation is worth ten thousand. After reading book after book about the Revolutionary War and finding only complicated maps with dotted lines and dashed lines crisscrossing the pages, we decided to depict the key naval and land battles using animation technology.For example, if you want to view the battles at Saratoga/Ticonderoga that were described in AN ECHO IN THE BONE, go here and click the red "Play" button in the middle of the page. Then just keep clicking Play to advance the animation to the next frame.
Thanks to my friend Sandy on Compuserve for the link!