Also, I didn't add the image which was probably copyrighted; but thanks for taking it down. I did recently (May 21) e-mail the people at King Features and Marvel Comics asking if there were any images in the public domain. But, since Spider-Man is I think a trademark, I wouldn't expect it.... Awaiting a response
(later) I've gotten a rather prompt response from one of the public relations people, who has assured me that to his knowledge no image of Spider-Man is in the public domain. Therefore no image of Spider-Man may be posted here, as it would conflict with Wikipedia's licensing terms.