Last year in Sep 2010, Google introduced the Transparency Report, now today the company has added graphs for each region that show traffic patterns for all products in aggregate. These graphs will show data with a five-minute delay.
In this graph, for example, you'll see that all of our services in Egypt were down from January 27 to February 1:
"Starting today, you won't have to sift through every single product graph to figure out if one or more services are inaccessible. You'll get a snapshot up front. Also added annotations for historical anomalies that we've seen in the traffic to our services. To see the graph for each cited incident, just click on the corresponding link," explains Google.
More Info: Transparancey Report
[Source: Google Blog]