I'm evaluating dotNetNuke for a client with very large regionally based user groups.  I can see there are some very nice workflow and document management features built in, but I was wondering about some other features I haven't seen mentioned in the introductory videos and data sheets:

1. Can you create custom roles to add to the set shown in the videos?  (e.g., add "Reviewer" alongside of the Translator, Admin, Registered User roles)
2. Is there support for self-creation of Groups/Communities for users with certain roles?
3. Can document repositories be associated with single or multiple Groups/Communities?
4. Can membership profiles be easily extended with additional information fields?
5. Can individual users set up their own blogs?
6. Can users create their own home pages?

 Thanks in advance for any information on these specific questions or leads to detailed feature lists that might be available.

Cheers,

-dqj

Thank you!