How much of scalability is architecture, and how much is throwing servers at the problem? Feedback from engineers at Facebook, Meebo, Slide and Flickr.
Looking at outages presents just half the uptime picture. For a broader analysis, we look at Netcraft's public reliability ratings of hosting company reliability.
Florida hosting firm Atlantic.net is suffering an extended data center outage this evening, which has taken the blog advertising services PayPerPost and SocialSpark offline.
The Mozilla Foundation's web sites have experienced availability problems in the first few minutes of availability for the hotly-anticipated Firefox 3 web browser.