Thursday, May 14, 2009 | 2:36 PM
For approximately one hour today starting at 7:48 am Pacific Time, Google had an error in routing traffic that prevented Google Analytics from collecting a small amount of data for some web properties.
On average, this will appear as roughly a 1% decrease in traffic for Thursday, May 14. The exact amount may be more or less depending on the concentration of traffic your site experienced during this one hour time period.
On behalf of our team, we're very sorry for the inconvenience this error has caused. For additional information on the error, see the Official Google Blog.