This presentation is intended to for an introductory level audience interested in learning about Creative Commons licenses, which form the basis for open educational resources. It covers potential benefits of licensing works work Creative Commons licenses, various types of Creative Commons licenses (including the two Public Domain markers), and what what can with with OER. It also introduces the ELMS model (Evaluate, Licence, Mark, and Share) which are best practices for creating and sharing OER, how to mark 3rd party content within openly licensed content, how to mark your originally created content, required attributions, citation as good scholarly practice, where to share and find works, and services offered by the Virginia Tech Libraries. Additional topics that could be added are: peer review and resource quality assurance, technical openness or authoring and sharing in editable formats, adding metadata items and machine readability, and DOIs, stable links, and/or permanent archiving to reduce the likelihood of broken links.