Via Kevin Rose, check out TheyRule.net. It's nifty flash website that plots the web of relationships between corporations and members of their boards of directors. You can build your own maps, or just use some of the predefined ones. Click "Load Map" then "Popular" to browse their presets, which are usually constructed to illustrate some entertaining point about the secret, unspeakable desires of global conglomerates (e.g. money contributed to Democrats vs. Republicans; media outlets owned; that sort of thing).