Larry and Serge have been on (and I think they both took the course when they were at Stanford.)
Google: Larry and Serge are the richest Librarians in human history. Amazon: I thought "Barnes and Noble" and "Borders" were huge.
. * Larry and Serge would probably the richest people in porn if the ONLY source of their income were porn, I just did a google keyword search, it wouldn't
But remember, Larry and Serge weren't librarians, Steve Jobs wasn't a musician, Pierre Omidyar wasn't hanging out at flea markets, and Jeff Bezos didn't