An anonymous reader writes: Congratulatory tweets and missives pour in to honor @theRealStanLee (nee Stanley Lieber), the Romanian immigrant who created or co-created most of Marvel Comics' memorable heroes. Lee celebrated his 90th birthday on Friday. Earlier this year, someone posted a collection of Lee's cameo appearances in Marvel Comics movies, often playing an older gentleman in the crowd ("superheroes in New York? Give me a break!"), but watch for the time he plays himself, trying to get past a club bouncer ("I'm Stan Lee. I should be on that list!").