Above: Part of the ServePath newsletter.
The list was taken from our April post with downtime numbers for the Alexa top 20 websites. We actually posted a new, updated list last Tuesday.
You might also want to read what news service The Register had to say about those very interesting downtime numbers.
Credits to ServePath for including this data in their newsletter. We want to raise awareness of uptime-related issues and always encourage people to spread and discuss this kind of information publicly. The more knowledge that is out there, the better we can deal with the problems.