You will be able to get tons of free paper sample books with a variety of printing techniques used to show that versatility of the paper stock. Many times I use these books to help me come up with new ideas or to show my clients examples of techniques I can’t simulate.
YouTube.com lets anyone upload movies to their website for free. The movie is hosted on their site, but shows up on your site. Doing this avoids some compatibility issues you may run into if you simply link to the movie file on your host.