What Is The Best Open Source Content Management System?

I want to create a web site for a small non-profit. The site needs to manage documents, user registrations, and allow easy update of information.

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5 Responses to “What Is The Best Open Source Content Management System?”

  1. Mambo, now Joomla is best open source content management system as per your requirement. It is easy to manage documents, user registrations and all.It uses technologies PHP,MYSQL.Below are the urls related to mambo.
    http://www.mamboserver.com
    http://www.mamboforge.net