Six Degrees of Separation

Cinema FreeNet - Links actors, directors, and producers together given a source and a target.
www.cinfn.com/

8 Degrees or Less - Variation of the game Six Degrees of Separation featuring an online game and scoreboard.
8degrees.tripod.com/

The Oracle of Bacon at Virginia - Home of the popular Kevin Bacon game as well as a similar game that links any actor/actress to any other.
www.cs.virginia.edu/oracle/

Six Degrees of Kevin Bacon - Instructions, sample chains, and helpful hints.
www.geocities.com/theeac/bacon.html

Six Degrees of Separation - Instructions on how to play, and an example chain.
www.louisville.com/loumag/mar/bacon.htm