https://github.com/mariocesar/django-startup

With the time, helping others I realize there are features that are common to everybody. like User management, Leads, Email marketing integration, branding, sysadmin tools, deployment, etc.

I want the project is common enough to be useful immediately and be ready to extend with a particular service, product or awesome idea you are thinking.

I'm on the early stage of development, so:

What do you consider are the most important and common features to all startup websites?