On a related note, Vice.com notes that the website of the author of SOPA, U.S. Representative Lamar Smith, did not properly attribute its use of a CC BY-NC-SA licensed photo (Mist Lifting off Cedars) by Flickr user dj @ oxherder arts, aka DJ Schulte.

Here’s the photo, with attribution (aka how we normally attribute photos on this blog):

Mist Lifting off Cedars / dj @ oxherder arts / CC BY-NC-SA

As anyone who has read the CC license deeds know, all CC licenses require attribution, which is clearly summarized at http://creativecommons.org/licenses/by-nc-sa/2.0 (and all CC license summaries):

Attribution — You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work.

Additionally, the complete license (aka legal code) is linked at the top of all deed summaries. We’re continually trying to help users understand how to properly mark CC-licensed works; to avoid mis- or non-attribution situations like the above, or for more info, see our FAQ and Marking best practices for users of CC-licensed content.