mysticalsock - 12:05 pm on May 2, 2009 (gmt 0)

Started with adsense a few years ago and saw a steady increase in earnings each month up until October 08 when it suddenly started to decline rapidly even though traffic etc was increasing. I think that the recession is partly to blame but I also think that google has changed something in the way that clicks/earnings/ecpm are calculated. I think that a change was implemented in October and they've been tweaking it ever since, maybe it's a conspiracy theory :0) but who knows.