Lycos seem to have put their campaign on hold for the moment ....
http://news.bbc.co.uk/1/hi/technology/4065751.stm
I have to admit, that I couldn't see how it would work over the longer term. It seemed glaringly obvious to me that the "attacked" sites would respond by spamming Lycos.
Still, I suppose it seemed a good idea at the time.
ST
[edited to sort spelling mistakes 031204]