From a Creative Commons Blog Post by Timothy Vollmer:
We’re pleased to see the launch of The Public Domain Review. The Review is a website with weekly updates in which scholars, writers, artists, librarians and others present an interesting or curious work (including films, photographs, texts and audio) from the public domain and write short accompanying articles about it that provide background, context, history, or other commentary or criticism. There are already several articles up on the site. The Review is also accepting submissions.
[Clip]
The Public Domain Review will highlight public domain materials from Wikimedia Commons, The Internet Archive, Flickr’s The Commons, and other sites. While all the multimedia content featured on the site is in the public domain, the reviews themselves are published under the Creative Commons Attribution license.
Direct to The Public Domain Review