ken_b - 4:25 pm on Aug 10, 2004 (gmt 0)

1) the AdWords advertisers had a big advertiser come on with high bids (or a high bidder was lost for those seeing lower EPC) or Google has done its regular "smart pricing" update based on conversion data (and whatever else they use), and we're seeing the effect of that recalculation.

I'm inclined to think both of these factors play a significant role. Together they can make for a pretty volitile environment.

For me the last month has been like a roller coaster as far as daily revenues go. Interestingly my long term averages, meaning monthly and three months, are rock solid. Fortunately traffic has been increasing and which has meant an overall growth in earnings.