I have been getting some trackback spam on a few of my high PR blogs .

now this is nothing new, but how they are doing it is interesting.

they are not tracking back directly to their "Pharmaceutical" site, but rather they created a user profile at like fuel.tv, getresponse*com or maybe others built on a similar or same CMS

and they actually put a redirect script to then forward it to their actual money site.

so the method seems to be

create a keyword targeted user profile at one of these sites that has high PR and allows scripts to execute in the profile

so it will be a url like getreponse*com/i-love-viagra

or something. and If enter through the trackback link, I get immeadilty redirected to their crap site.

very clever thinking actually.

Incidently on a realated note, if you want to stay on the cutting edge of link building, just search google for "buy viagra" and then study the backlinks on all those in the top ten.

This will teach you about all the past and future trends of link building.