MikeNoLastName - 10:27 pm on Apr 10, 2008 (gmt 0) [edited by: MikeNoLastName at 10:30 pm (utc) on April 10, 2008]
I would (and have in the past) accept(ed) that it is due to various random traffic patterns, and all that, except that the TIMING is so perfectly aligned with the end of Q1 for the last 2 years (Mar-Apr 2006, 2007, 2008). Our PPC has repeatedly tended to go up and up and up in Jan-Mar, as if Smart Pricing was relaxed lower, then start a steady slope down Apr through Dec as if SP reduction is slowly cranked up. We were sloping steadily up again this year Jan-Mar, and as soon as Mar ended so did our high PPC, it's now back down by 15% while our traffic is down about 10% due to G SE rank changes... Is there a connection between how G ranks your site and how they set your smart-pricing? I've said yes repeatedly. Coincidently WE ALSO started seeing the ad scroll arrows start appearing right at the beginning of this month, but not necessarily saying they are related.
[edited by: MikeNoLastName at 10:30 pm (utc) on April 10, 2008]