The only characteristic shared among all Creative Commons licences is that they allow works to be shared verbatim, for non-commercial purposes only. Some of them do go further to allow modification, commercial use or both, but by referring to a work as being "under a Creative Commons licence," one doesn't communicate that. While noncommercial sharing is a valuable gem in today's culture of draconian copyright restrictions and DRM, it is not particularly useful by itself in many cases -- for example, the noncommercial restriction would prevent you from placing it on your blog if you display any advertising material from which you make money. For more good reasons <em>not</em> to use a noncommercial licence, please refer to <a href="http://freedomdefined.org/Licenses/NC">this great article</a> by Erik Möller.
The only characteristic shared among all Creative Commons licences is that they allow works to be shared verbatim, for non-commercial purposes only. Some of them do go further to allow modification, commercial use or both, but by referring to a work as being "under a Creative Commons licence," one doesn't communicate that. While noncommercial sharing is a valuable gem in today's culture of draconian copyright restrictions and DRM, it is not particularly useful by itself in many cases -- for example, the noncommercial restriction would prevent you from placing it on your blog if you display any advertising material from which you make money. For more good reasons <em>not</em> to use a noncommercial licence, please refer to <a href="http://freedomdefined.org/Licenses/NC">this great article</a> by Erik Möller.