Google Outage Leads to Big Drop in Internet Traffic

Google experienced a global outage beginning on 16-Aug-2013 at 4:37 PM (Pacific) and lasting 1 to 5 minutes.  The disruption impacted all of the company's most popular services, including search, Gmail, Google Calendar, Google Talk, Google Drive, Google Maps, etc.

GoSquared Engineering, which provides real-time analytics, said its tracking showed that the momentary Google outage resulted in an immediate, 40% drop in global Internet traffic.

https://engineering.gosquared.com/googles-downtime-40-drop-in-traffic
http://www.google.com/appsstatus#hl=en&v=status&ts=1376895599000