SIX MAIN CC LICENSE COMBINATIONS based on the 4 basic restrictions/allowances.
cc-by: Only attribution is expected
cc-by-sa: Attribution, plus the expectation that you will allow others to share alike
cc-by-nc: Attribution, but no commercial use allowed
cc-by-nd: Attribution, but no derivative works allowed
cc-by-nc-sa: Attribution, plus no commercial use allowed, and the expectation that you will allow others to share alike
cc-by-nc-nd: Attribution, plus no commercial use allowed, and no derivative works allowed
FOUR BASIC RESTRICTIONS/ALLOWANCES
Your intellectual property rights begin with you!
Many authors don't realize they can negotiate to retain certain rights to their created works simply by executing a copyright transfer agreement author's addendum as described by SPARC (Scholarly Publishing and Academic Resources Coalition)
Site includes a downloadable template for you to begin to draft the rights you will retain as an author.