copy - on the subject of copyrights
Copyrights, copyright texts, defines who has rights to (e.g.) copy, distribute, perform or display work in public, sell or assign rights to others, transmit or display by radio or video, reuse and modify works based on it. See copyrights - wikipedia article for more.
Creative Commons Attribution License
To ensure the legal reusability of content, Connexions requires authors to license materials they publish under the Creative Commons Attribution License  (presently, version 2.0). Under this license, the author retains the right to be credited (attributed) wherever the content is reused. The author grants others the right to copy, distribute, and display the work, and to derive works based on it, as long as the author is credited. (From wikipedia article on Connexions.)
Scale of strengths of rights, from unlimited to 'full restrictions':
|How restrictive:||No copyright
|<- (less restrictive) copyrights (more restrictive) ->||Most restrictive|
|E.g. license, technology||BSD, LGPL, GPL||MS Shared Source||MS EULA||DVD CSS|
|Open/Closed Source?||Open Source||Closed Source|
 If viewed as open- or closed- source by Free Software Foundation (fsf.org, licensing/licenses) and Open Source Initiative (OSI, opensource.org). Note that there are many companies that claims open source but restricts the use. This is NOT open source by the general definition accepted by (e.g.) FSF and OSI.
The above table as used in an official presentation (2015):
What rights and obligations do you have with different types of licenses?
Table below is one way of looking at what you may be allowed to do, and not, and what you will have to do (e.g. GPL: must provide sources).
NOTE: Information on this page is compiled by a layman. Talk to your legal advisor for more details.