CloudFlare was completely down for an hour this weekend. I wrote an article on TTJ, explaining what really happened. We also work with CloudFlare, even TTJ use their service(some of their service, not complete package). Some of our site also went down with it, but we came back online within 15 minute or so. Interesting thing is my this post in TTJ got viral.
Yea, I know, I should write more in TTJ.