Tech Downtime in 2010: Learn From Foursquare, Skype, Twitter, Digg and Facebook

Surprised Tumblr didn't make this list after the incident in early December where they had more than 12 hours of downtime.

in this article, I cover briefly why these big sites had downtime in 2010. I offer simple advice to a non-technical crowd on how to avoid certain mistakes. Obviously, the situations at all of these sites were pretty complex