If you have any interest in science or writing science fiction, you might want to take a peek behind this link. The Howard Hughes Medical Institute publishes talks and DVDs on a variety of topics and distributes them free of charge to anyone who asks. Not just free of charge, but free shipping as well.
Topics range from the science of fat and human metabolism, to gene coding and viral diseases. Need a zombie plague? Pull up a chair at your own TV and learn about emerging pathogens — for free! How can you pass that up?