I just got a recommendation on the TXBASTRO List for a 10 minute animated (audio narration) US Map that is somewhat interactive. It provides a really outstanding overview of the Growth of our Nation. If you want to give it a try, the link is http://www.animatedatlas.com/movie.html . If you're like me, it's nice to occasionally be able to quickly step back and remind myself of the big picture for my genealogy work in the US. And I think site this does that extremely well in a short period of time. Larry Ward