When Jerry Siegel and Joe Shuster created Superman back in the 1930's, they envisioned the character as the star of a proposed newspaper comic strip.After being turned down by a few publishers, they eventually struck a deal with DC - who pasted the strips into comic book form. The result was the classic Action Comics #1, and the rest is history.
DC.com is re-printing Siegel and Shuster's original daily Superman comic strips from the 1930's. They're a bit crude by today's standards - but they're a lot of fun. Check 'em out.