David Crotty has published "Creative Commons Confusion Continues to Confound Content Creators" in The Scholarly Kitchen.
Here's an excerpt:
Yahoo!, owners of the photo sharing site Flickr, recently caused a storm of controversy by announcing plans to sell prints of photos that users had uploaded. Yahoo!'s plans included sharing 51% of revenue with users who had retained copyright on their photos. For those who voluntarily selected a Creative Commons Attribution license (CC BY) for their works, no compensation was offered. Despite the fact that Yahoo! was explicitly following the terms of the license, and doing exactly what the license was designed to promote, users were up in arms over seeing a large corporation taking advantage of their labors.