Using ContentLicensing
How to use ContentLicensing in a Plone instance.

To edit the content licensing of the page, click the properties tab.

Scroll down until the "Copyrights" field appears. If you have any special copyright information not covered by the license, place that information here.

The Copyright Holder and Copyright License options are below the discussion item options. Type in the copyright holder of the content if it is someone other than the site default. Now select the Copyright license.
Site Default
The Site Default license can be any kind of license. The administration of the Plone instance, using ContentLicensing, determines what the Site Default license is.
All Rights Reserved
A traditional copyright license. For more information about a traditional copyright license in the U.S., visit the Copyright Office's basic FAQ. For countries outside the U.S., consult the appropriate government office for that country.
GNU Free Document License
Allows
for the distribution and copying of content without the need for
payment or notification of the copyright holder. Derivative works are
allowed, but they must be licensed using the GNU Free Document License.
For more information about the GNU Free Document License, visit the GNU website.
Creative Commons license
There
are several different types of Creative Commons Licenses. The default
Creative Commons license for the Default Site License is
Attribution-Noncommercial-Share Alike 3.0. This license allows for the
free distribution of the content as long as it is properly attributed,
not used for commercial purposes, and is shared using the same license. More information about the Creative Commons license
can be found at the Creative Commons website.
To choose a different Creative Commons license, click the link "Choose" next to "Creative Commons License."

In the new window answer the questions based on whether you want the to license the content for commerical use and allow for modification. Then click "Select a license."

The window will then display the name of the license and a permanent URL where the license can be found. To use license for the page, click proceed.
Other License

To select a license that isn't on the list, click "other."

In the new window select a license name and the URL where the license can be found. A URL that points to a graphic to represent the license may also be selected.
Implementing Changes
Once you are done making changes on the preferences page, click "Save." The changes should now appear on the page.
