oracle of bacon   (link)

http://www.cs.virginia.edu/oracle/
automated 6 degrees of kevin bacon game, spiders imdb periodically

Every couple of weeks the Oracle downloads several database files from one of the Internet Movie Database's FTP sites containing around 500,000 actors and actresses, around 275,000 movies, and around 30,000 aliases. The Oracle builds a big map of actors and movies and stores it in a 25 MB database.