Open Attribute is a simple add-on (currently available for Firefox & Chrome) that makes it easier to attribute the proper Creative Commons license at the click of an icon on your toolbar..
License attribution is relatively simple, but sometimes people get it wrong. We will be talking about this more in the very near future, and will be implementing functionality to give you the option to apply creative commons licenses to any files you make available for download on Shapeways. Until then, take a look at Open Attribute to help you ensure you do not inadvertently step on anyone's digital toes.
"That’s why we’re building Open Attribute, a suite of tools that makes it ridiculously simple for anyone to copy and paste the correct attribution for any CC licensed work. These tools will query the metadata around a CC-licensed object and produce a properly formatted attribution that users can copy and paste wherever they need to.
Open Attribute is at the early stages and it looks like they will be broadening their range off tools, it would be great to see them include the option to add the icon for the license used along with the attribution and location. I did do a quick test and picked up a glitch where the attribution referenced the wrong URL, also it did not pick up the license out of Flickr even though they use it as an example.
In reference to the Flickr glitch - were you logged into your Flickr account, looking at your own Flickr pictures? We learned the hard way that for whatever reason, Flickr does not include the RDFa in pages for your own pictures when you are logged in. I guess they figure you don't need to attribute yourself. Try it again with someone else's pictures - it should work.