NNDB Mapper from the NNDB (Notable Names Database) is a sophisticated visualization tool for the people—the kind of thing we’re starting to see a lot more of—and you can use it to uncover little-known connections between Pulitzer Prize-winning New Yorker contributors who have been parodied as Muppets and philosophers featured on the cover of Sgt. Pepper’s Lonely Hearts Club Band who have had asteroids named after them, then overlay their zodiac signs. Or just see which big-name donors have contributed to the campaigns of both Obama and McCain. Fun stuff though I would love to be able to use this on top of other data sources.

See also: TheyRule, ExxonSecrets