from here, as you certainly know, you can see how to extend the User
model to fit the particular needs of a given application:
http://www.b-list.org/weblog/2006/06/06/django-tips-extending-user-model
In my application I have two different kind of users, so I have to
extend it twice: which value should I specify for the parameter
AUTH_PROFILE_MODULE in settings.py?
Thanks and regards
Francesco