and.doxdesk.com: parasite

Parasites-adware-spyware. A disgusting as well as a fascinating subject.

Fascinating? Yes, as in "just how low will the bottom-feeders go?" and also as in "knowledge is power -- to know the enemy is to be able to keep it at bay."

This is a great round-up. I like the section that outlines the good free, good commercial and not so good anti-parasite software.