7.797 (most of them probably interesting movies, series, albums).

I just found out how to put them all in a list and ordered them by age - the oldest ones are from 2003. IMDB is the sixth-oldest. Another intersting old one is https://brickfilms.com/.

Apparently, that was some other Zuckerberg project: https://www.metro.us/everything-to-know-about-facemash-the-site-zuckerberg-created-in-college-to-rank-hot-women/