A new kind of spam
A number of blogger sites have a list of other sites who refer to them. They're often in place for the webmasters to see how popular they are but these referral lists can be tricked into displaying links to web sites that do not truly link to them. I've noticed the occasional hit to my referrer list, mostly from porn sites and most recently, one from John Kerry's presedential campaign. This is annoying to say the least but has become just another tool in the arsenal of spammers to push their site.
For John Kerry, this seems like an underhanded and detrimental approach to push his campaign, much like the use of e-mail spam. A quick search on Google brings up similar complaints.