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The Art of SEO: Mastering Search Engine Optimization (Theory in Practice) Highlight
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— Eric Enge and Stephan Spencer and Rand Fishkin and and Jessie C StricchiolaUse the as_rights parameter in the URL to find Creative Commons licensed content. Here are some example scenarios to find CC-licensed material on the Web: Permit commercial use http://google.com/search?as_rights=(cc_publicdomain|cc_attribute|cc_sharealike|cc_nonderived).-(cc_noncommercial)&q=KEYWORDS
Replicated under Fair Use from The Art of SEO: Mastering Search Engine Optimization (Theory in Practice) by Eric Enge and Stephan Spencer and Rand Fishkin and and Jessie C Stricchiola.