"Carefully review the Creative Commons licenses (http://creativecommons.org/). Write a post describing the different licenses."
The Creative Commons website identifies six main license types. For each license listed is provided a brief summary, a link to a "human-readable" description of the specific conditions of the license, and a link to the full-blown license text, which one might suppose could be described as "lawyer-readable".
After reading the full text of a couple of the licenses, I began to lose my will to live. I guess there's a reason I'm looking to become an instructional technologist instead of a doctor of jurisprudence. However, here is my best attempt to summarize the things I learned.