“But for a site with almost one billion users, Facebook has proven to be remarkably resilient. I expect we’ll soon hear from the company on what caused its latest problem, given its openness around engineering efforts. Remember, delivering five nines (99.999 percent) reliability — which means your site is down less than 5.26 minutes a year — on the web is hard, so hard it may indeed be a pipe dream.”
via More bad news for Facebook, as site crashes — Tech News and Analysis