Some links about old Superman comic books:
1. A collector is offering for sale the correspondence between Jerry Siegel and National from the period of the first lawsuit over the ownership of Superman.
2. The website devoted to all things classic Superman, Superman Through the Ages, has a new home, supermanthrutheages.com
3. Joe Shuster once drew Batman.
4. You can watch the guy who wrote The Science of Superheroes talk about "Superman's boners" on youtube:
5. Clark Kent, DJ