this license was created by the Creative Commons project
this license was created by the Free Software Foundation (FSF)
distribution of derivative works is allowed
distribution, public display and public performance are allowed
making multiple copies is allowed
commercial derivatives are allowed, but only non-commercial distribution is allowed
exercising rights for commercial purposes is prohibited
use in a non-developing country is prohibited
credit must be given to copyright holder and/or author
derivative and combined works must be licensed under specified terms, similar to those of the original work
derivative works must be licensed under specified terms, with at least the same conditions as the original work; combinations with the work may be licensed under different terms
copyright and license notices must be kept intact
derivative works must be licensed under the same terms or compatible terms as the original work
source code (the preferred form for making modifications) must be provided when exercising some rights granted by the license
See http://creativecommons.org/ns for more information.