Site Response Time (how long it takes faceboom to respond, higher numbers means slower response)
File A Report (file a complaint about if facebook is down for you)
Reported Results (mapping of reported facebook downtime incidents)
What does this site do?
This site is a free service that allows you to report your facebook downtime and see if other users around the world are experiencing the same problems as you with facebook. During downtimes you will see that a huge amount of Twitter users start talking about facebook being down or experiencing slow load times. You can also read the official facebook blog that reports (usually a day or two after) about downtime and technical issues they have on their end. Generally facebook is a wonderfully reliable service that works despite hundreds of millions of users using it all day but when it doesn't, we want to track it and log it.