Google Adds Creative Commons Filter To Advanced Image Search
Google Operating System, like always, spots that Google has added the creative commons filter to the advanced image search page. In June, Google added the filter through advanced URL parameters, but now it is officially added to the advanced search page.
Here is a screen capture of the filter options, but you can learn more on usage rights here.
Yahoo added the same type of filter back in May.
Postscript: Google has now posted about this new image search feature.