Who is the most resistant?

Pingdom recently published a list in which downtime was published (from the beginning of 2007 to this day) of twenty leading sites rated by Alexa .

In this list, the site is leading Yahoo , which this year has never fallen.

The obvious outsiders are Google's YouTube and Blogger.com - each of them was not available for almost five hours. Google itself was “great” - 7 minutes of inactivity is quite a good indicator!