Yeah, come to think of it I really should've stopped at God Emperor because Heretics and Chapterhouse really took a bizarre turn in the series that really felt like it belonged to a different series altogether. At the least God Emperor was still related to the first book more than just gholas.
Ghostery if you're paranoid like me.
Be sure to actually set it to block advertisers, I think as default it just lists who or what is tracking you. If the names are not greyed and crossed out then it is not blocking them.