This past year I've been seeing the same case over and over again on the webmaster forums..... "Help!! All my sites are de-indexed!! I lost all my income!" In nearly every occurrence of this, I see 3 things which remain the same in all cases: They were using Adsense + They were using Google Analytics + They hosted all sites on one host So why do you all think it happens? If BH backlink strategies can cause this, how long before we are all sending our competitor's links to bad neighborhoods on SB/xrumer?