Geometry Activities

I'll put this in the link list too, but check out the publisher's site:
http://www.classzone.com/cz/books/geometry_2007_na/get_chapter_group.htm?cin=1&ci=1&rg=animated_math&at=animations&var=animations

for animations on vocabulary, two column proofs, parallel and perpendicular lines, transversals, and more.