Online advertising is not growing, and it has been declining since Q3 2007.  TechCrunch’s Erick Schonfeld has the graphical data to prove that the combined ad revenues of Google, Microsoft, Yahoo and AOL account only for 0.6 percent growth from Q2 2008 to Q3 2008. That was coming from a declining trend in ad revenues which started  from  the Q3 to Q4 of 2007 where the ad revenue rate was at its highest at 12.7 percent. (more…)