Swedish agency Starring has developed cool online campaign for Lycos Europe. On the site www.makelovenotspam.com users can download a screensaver which makes visits to spammers' sites. By generating a lot of traffic spammers' servers slow down and face higher bandwidth costs.
The idea sounds nice, but the action isn't probably very fair... It has generated a lot of polemics and as a result, someone has hacked and downed Lycos' site just hours after it went live.
3.12 update: Actually there is another version of the story... Calle Sjönell, creative director at Starring, emailed me saying that the site went down because of the high traffic received: "We upgraded the server since the old one was melting from all the attention".