I can't add any resources to what has already been mentioned but here's a few tips to make searching easier.
On Google code, go to the hosting search page and type
label:django
into the search box. This will limit the search results to projects with a Django tag. If there are Django projects without this tag they probably aren't worth looking at anyway.
When you are looking at a project hosted on Google code check the Issues tab for any long outstanding issues. Users post bogus or poorly written bug reports of course, but an active project will still handle them. Also check the "Changes" link under the Source tab to see project activity. A lack of activity isn't necessarily a bad thing, but lots of recent activity can be a good thing.
Same thing goes for GitHub. Go to the advanced search page and search "Repositories" for "django". Look at the Commits tab for recent activity, the issue tracker if they use it, and also see if there are a lot of forks. It's probably not good if you see forks with names like "attempt to upgrade to Django 1.0".
For bitbucket it is not obvious where to find search. You have to go to the repository list page to search for django projects.