Neil Patel is compiling a list, and currently has more than 500. Some of these are related to the things Google has bought (deja.net, picasa.com, pyra.com, keyhole.com, writely.com etc), some are misspellings (gogole.com, googel.com, googil.com) and some are defensive pre-emptions (googlesucks.com, googleporn.com etc). Some are just mysterious: what's the point of veritablebevy.com or jennifer-wanderer.com or canalportugal.info, if these are actually owned by Google.
Either way, it's a great time-waster for a Friday afternoon. Pity it's Tuesday....