Page is a not externally linkable
-- Yahoo Search Marketing Pay Per Click Advertising
---- CTR Change, Older news
mike_ppc - 10:11 am on Jun 11, 2007 (gmt 0)Thread source:: http://www.webmasterworld.com/yahoo_search_marketing_overture_ppc/3359313.htm
You should have a detailed report. It could be possible that only one keyword (or a few) has much more impressions, and the others remained at the same level.
Brought to you by WebmasterWorld: http://www.webmasterworld.com