Google Analytics has not been reporting data since the 9:00 am hour Pacific Time yesterday (February 1, 2007). Whenever this type of thing happens, the first thing people wonder is whether this is an isolated instance (in which case there is a lot to worry about), or is this happening to everyone. Judging from discussions in Google Groups, lots of people are seeing it, so it’s not an individual site issue.
Updated at 5:54 pm Pacific Time Feb 2, 2007: I just logged into the Google Analytics reporting console and saw all traffic for Feb 1, 2007 is now being reported. There is still no data showing for Feb 2, 2007.
Updated at 11:15 pm Pacific Time Feb 2, 2007: Google Analytics reporting is now back to normal.