After last week’s exciting announcement that Google Image search is now capable of filtering results by usage rights, we realized there is a lot of interest in how creators can signal their work as being CC-licensed to both humans and robots.
Its called the Creative Commons Rights Expression Language and is part of the semantic web. Without getting too technical, ccREL uses a technology called RDFa to express licensing information to machines so that they can deduce the same facts about a work (such as its title, author, and most importantly, its license) that humans can. If you’re interested in the future of the web and structured data, you’ll want to check out our wiki pages on RDFa, ccREL, and our white paper submitted to the W3C. Google has a page explaining RDFa and Yahoo has a page explaining how RDFa is used by Yahoo Search.
The easiest way to signal to both humans and robots that your content is CC licensed is to head over to our license chooser and choose a license to put on your own site.
Our license chooser automatically generates the proper ccREL code, so its easy! Don’t forget to fill out the “Additional Information” section. You’ll then get a snippet of XHTML embed that will contain ccREL. Place this near your work (preferably on its same page of the work which also happens to be unique) and you’re all set. If you’re running an entire content community, you can also dynamically generate this markup based on the particular user, title of the work and so on. Check out Thingiverse for a excellent example of this functionality.2 Comments »
Molly Kleinman, the “multi-purpose” librarian, has started putting together some easy to digest HowTos on Creative Commons. In HowTo #1 she details some very reasonable examples of proper attribution:
An Ideal Attribution
This video features the song “Play Your Part (Pt.1)” by Girl Talk, available under a Creative Commons Attribution-Noncommercial license. © 2008, Greg Gillis.
A Realistic Attribution
Photo by mollyali, available under a Creative Commons Attribution-Noncommercial license.
A Derivative Work Attribution
This is a video adaptation of the novel Down and Out in the Magic Kingdom by Cory Doctorow, available under a Creative Commons Attribution-Noncommercial-Share Alike license. Copyright © 2003 Cory Doctorow.
In HowTo #2, Molly gives some examples to demonstrate our NonCommercial license:
- Using an illustration on a birthday party invitation = Non-commercial
Using an illustration on a charity auction invitation = Commercial
- Using a song as the soundtrack to a collection of home videos for the family reunion = Non-commercial
Using a song as the soundtrack to an advertisement for a Family Reunion Travel deal = Commercial
- Using a photo on a personal website that has no ads = Non-commercial
Using a photo on an ad-supported website = Commercial
Visit Molly’s site for more updates on the HowTos and other news relevant to open content and librarians.No Comments »
Molly Kleinman, Copyright Specialist and Special Projects Librarian at the University of Michigan, just wrote up a nice howto for people who use Creative Commons licensed material in their work. This will hopefully add to the repository of knowledge for best practices on material integration.
This is an ongoing issue in the community. No matter how straight forward the instructions for providing attribution to a work are, mistakes will always be made. Most times the mistakes are made not in malice but in a lack of guidance. Luckily, Molly is taking up the task on her blog.
Her examples are easy to understand along with providing various methods of accomplishing the same goal. She even has an “Ideal” example and a “Realistic” example.
I’m taking the material I use in my workshops, mixing it up with CC’s extensive documentation, and posting the results here. If anyone has ideas for topics they’d like me to cover, let me know.
Here’s hoping she continues on this project of producing easy to understand examples of how to use Creative Commons licenses effectively and correctly.No Comments »