Easter egg obscenities

What's the source for Google's Official List of Bad Words?

Google’s Official List of Bad Words (NSFW, duh) caught my eye, not least because I consider myself a student of obscenity. The list was extracted from What Do You Love, Google’s new service that pops up links to Google services that will let you “watch videos of X”, “translate X into 57 languages”, “organize a debate about X”. Scanning the list, my eyes zipped past the usual variations on orifices and things you can do with them and alighted on some interesting words that aren’t exactly swearing: “cyalis” (misspelled willy medicine), “gaylord” (a San Francisco hotel and Indian Restaurant), and “hoar” (a type of frost). My favourite, though, is cipa, which is the Child Internet Protection Act. Someone has a sense of humour.

I’d love to know the origins of the Google list. A search I made for some of the obscure variant words like “w00se” turned up a list of censored words from an MMORPG called Archlord, which also included “cipa.” I suspect that Google’s list is largely based on a previous list and so on back in time to the Ur-catalogue of obscenity that is George Carlin’s Seven Dirty Words You Can’t Say on Radio. Anyone know the origins? Leave a comment and inform the rest of us. (But keep it clean)