If you haven't already checked them out, head over to C-Span Classroom. They provide free primary source history resources for educators. Lesson plans and videos are available on their website. We received in the mail today a free American Presidents Timeline Poster that you can request on their website. The sucker is huge and full of extra material including information on supreme court decisions, ratification of constitutional amendments and much more. I am wondering where I am going to be able to hang it up but up it will go since it is full of valuable information. Check them out today.