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Hi everyone. Last week on Google Image Search, we introduced the ability for users to filter their results down to

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images that are just available under particular licenses such as Creative Commons, the GNU Free Documentation License,

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and even some public domain images as well. So, as a webmaster, you might be asking yourself the question: "Well, I

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have images, and how exactly do I go about staging them so that Google Image Search can parse it all apart and figure

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out that a particular image is covered under a particular license?"

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And it's a very good question. The simplest way to do this, and I'm going to introduce today, is by using RDFa. And

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RDFa is a way of marking up existing HTML elements with particular semantic metadata. So, here we see the image source

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tag as you might use it on your page today. The next stage here is to add on an anchor to the particular license that

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you happen to be using, such as the one shown here. The final stage in order to stage this image would be to try and

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encapsulate this, because the problem we have as a search engine with the markup as you see it right here, is that we

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don't really know that license is necessarily talking about the image on the page, or another image on the page, or

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even just the text on the page. So the way to do this is to introduce something like a <div> element, and use about=

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and then the image that you happen to be talking about, to group these two things together.

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So now we have:

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Here's a group.

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The group is talking about the image.

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Here's the image.

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And here's the license in question.

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And hopefully that should be enough for Google Image Search to figure out what's going on, and how you want this image

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to be staged, and how you want this image to be reused. And the other thing to add here of course is that if you do

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have particular requirements in terms of attribution, you should make that clear on the page, or have a link off to

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another page on your site that says, "Here's how I want to be attributed if you want to reuse my image." It's as

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simple as that. We're very excited about this new launch. We really look forward to hearing your feedback, by all

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means drop us some messages in the forum. Thank you.