Projects
MongoEngine
MongoEngine is an Object-Document Mapper (think ORM, but for Document Databases) for working with MongoDB from Python. The documentation is available at hmarr.com/mongoengine and the source is available on GitHub.
Mumblr
Mumblr is a simple Tumblelog application, written in Django. It uses MongoDB as its database, and MongoEngine for communicating with MongoDB from Django. Fork it on GitHub.