August 19, 2012 Digg's fourth version isn't running anymore, but was an interesting system to work on. This article describes the system architecture, as well as the context behind those choices, and will hopefully be an interesting read for those scaling engineering teams and systems.
April 4, 2011 Designing a system which scales to a high number of requests isn't critical for most applications, but you'll never know that it was important until after the fact, so it's worth putting some thought into ensuring your architecture can grow with your success.
February 16, 2009 I've been thinking a bit more about all the various deployment options for Django, and more specifically how the variety of options can be a bit bewildering for those who haven't setup a server before. Here is a picture-assisted guide to the distinctions between single and multi server architectures.