there is an interesting report in today's NYTimes..
(some one i know will add the link to the place were you can find 'generic id's and passwords' for those who don't want to register.)

here is a link to the NYTimes for those who are -or don't mind registering.
http://www.nytimes.com/2005/09/20/science/20curs.html

it about curse, vulgar, profane, and scatalogical language --its use and its history!
(this is the NYTIMES--the most commonly offensive words are never actually printed!)