As some of you may have noticed, since approximately 2pm PST this Monday, March 5th, there's been a delay for statistics reported in AdWords, AdSense and DoubleClick for Publishers. While the reports are delayed, whether you are an AdWords advertiser or an AdSense or DoubleClick publisher, your ads are serving as usual, with no disruptions.
This is a result of a temporary technical issue with our "statistics pipeline" (this is the system that translates the raw data into meaningful and actionable metrics for you). Our engineers are working hard to resolve the issue, and should have all your stats updated, current and complete by early Tuesday morning (PST).
We appreciate your patience. We'll update this post with any additional information and status reports.
Posted by Katie Miller, Inside AdWords crew