Check out the Creative Commons Website for information on Creative Commons Licences and how to licence your own work in the Creative Commons.
What the symbols mean: BY indicates that you must attribute the source of the work. Fulfill this requirement by citing the source. NC Some licences limit the rights to non commercial use, which means that you are not allowed to make money from the work. SA The Share alike icon means that any work you create using others’ work must also be licensed share alike.Creative Commons: An open source kind of Copyright
Check out the Creative Commons Website for information on Creative Commons Licences and how to licence your own work in the Creative Commons.
ND The ND symbol stands for no derivatives, that means the work must be used as is and not changed.