National Geographic's custom built CMS on top of Django. Major rewrite of their existing site. CMS manages publishing, images, modules and has a custom layout manager. Great examples of extending the admin and custom cache code.
This was developed internally at National Geographic with the help of Blenderbox (education side) and Lincoln Loop.
Visit this website at http://www.NationalGeographic.com/
Created by ed_menendez on 23rd Mar 2010