Webmaster Level: All
We recently introduced a new feature on Google Image Search which allows you to restrict your search results to images that have been tagged for free reuse. As a webmaster, you may be interested in how you can let Google know which licenses your images are released under, so I've prepared a brief video explaining how to do this using RDFa markup.
If you have any questions about how to mark up your images, please ask in our Webmaster Help Forum.