We will be performing unscheduled AdWords maintenance from 10 a.m. to 11 a.m. PT on Saturday, August 25, 2007. While all AdWords advertisements will continue to run as normal, you may not be able to perform API operations during this maintenance period.
We apologize for any inconvenience this may cause.
--Jon Diorio, Product Marketing
*** Update as of August 23 at 9am PT ***
This maintenance period has been CANCELED
Late last night our engineers were able to implement the upgrades that were originally scheduled for this Saturday’s maintenance period. All systems will remain operational and available.