http://wpmu.org/scaling-wordpress-wpmu-buddypress-like-edublogs/
Interesting write up by James at Incsub on how they handle scale on edublogs. Some good advice although a little light on specifics, a good starting point for research.
http://kencochrane.net/blog/2011/06/django-gunicorn-nginx-supervisord-fabric-centos55/
Useful article on how to deploy django apps on nginx. Handy.
http://serverfault.com/questions/330638/forward-my-http-requests-from-my-ip-to-another-server
Forwarding all web traffic from an old to a new server with nginx, includes a sample config for nginx. Useful.
http://www.cyberciti.biz/faq/custom-nginx-maintenance-page-with-http503/
Article explaining how to create a custom 503 maintenance page and have it served by default in various situations (migrations for example). Very useful.
http://www.askthepony.com/blog/2011/07/setup-a-complete-django-server-deploy-rollback-%E2%80%93-all-in-one-powerful-script/
A script to set up and deploy django servers. Hat tip rob.
