Cost-Per-Click – Average cost-per-click, which includes clicks related to ads served on Google sites and the sites of our Network members, decreased approximately 8% over the fourth quarter of 2010 and decreased approximately 8% over the third quarter of 2011.
http://investor.google.com/earnings/2011/Q4_google_earnings.html
How much is due to the web spam team ? how much due to the site wide penalties ? how much due to google+ how much due to panda (where is panda now?) will heads roll due to panda at google?
http://investor.google.com/earnings/2011/Q4_google_earnings.html
How much is due to the web spam team ? how much due to the site wide penalties ? how much due to google+ how much due to panda (where is panda now?) will heads roll due to panda at google?