The legal protections covering this site (concrete5.org) and the open source content management system we offer (concrete5 core code base) are very permissive, but sadly not brief.
Documents:
concrete5 Open Source License
Released under the MIT license, you can do ANYTHING you want with the actual content management system.
Commercial Add-On License
When you buy a Add-on on concrete5.org, you'll own your copy of that program under this license.
concrete5.org Privacy Policy
Policy covering all content contributed to this site by guests and members.
concrete5.org Terms of Use
Visitors to the concrete5.org are protected under this agreement.
Logo Usage
How to use the "high five!" and "concrete5(R)" logos on other sites.
Hosting SLA
If you choose to host with us at concrete5 Hosting, this is our Service Level Agreement with you.
Marketplace Resale Agreement
When we distribute your add-on or theme in the marketplace, you agree to these terms.
Refund Policy
Marketplace sales refund & return policy