Guys I've noticed that some high ranked sites getting many backlinks from blogs that uses Drupal I think. for example this site: If you can notice that this site has soo many backlinks from Drupal sites If you see all the pages in yahoo explorer u will notice there are much more sites already spammed. But the weird thing is that they have more then 1 backlink from 1 site. It is kind of impossible that they are spamming manually and Im really wondering what software are they using for drupal spamming. I am sure they are not using xrumer something because the owner of the site does not know how to use xrumer very well. So what do you think guys?