Excerpted from article on Search Engine Land:
"An image search feature that’s often used by bloggers and other content producers has found its way back to Yahoo Image Search.
The company announced yesterday that its Creative Commons/Flickr search filter is available again.
The filter is available at the bottom of the left-hand options menu; clicking “Labeled for Reuse” limits the search results to Flickr images that aren’t protected as “All Rights Reserved.”..."
Read full article here: