Michael Sauers, who has the wonderful title of "Technology Innovation Librarian" and blogs for the Nebraska Library Commission, has started cataloging and offering Creative Commons-licensed works at his library.  What he did was to take electronic versions of CC titles, post them on his library's Web server, catalog them in the OPAC, and make them available to the public. Additionally, for titles whose license allows for physical printing of the works, they turned the electronic books into spiral-bound books to be added to the physical collection.  The result, so far, is that his library now has a collection of 9 CC-licensed electronic titles available through the OPAC along with 7 print versions available to circulate.   Also, seven of the nine titles resulted in brand new records in OCLC.  Corey Doctorow, one of the authors, has blogged about the project over at BoingBoing.