Roger's Profanisaurus Rex: From the Pages of 'Viz', the Ultimate Swearing Dictionary
Expletive Deleted: A Good Look at Bad Language Ruth Wajnryb
The F-Word Jesse Scheidlower [now in its 4th edition]
Strong Language A sweary blog about swearing
Dropping The F-Bomb: Blogging with Naughty Words Darren Rowse
Feck Wikipedia