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Can you use canonical tags for things that are not part of your own website? Technically fastcompany.com and fastcodesign.com are different sites.

This article was published on fastcompany.com on March 19th.  http://www.fastcompany.com/magazine/164/designing-facebook

It did not receive much traffic, so it was re-posted on Co.Design today (March 27th) where it has received significantly more traffic.

http://www.fastcodesign.com/1669366/facebook-agrees-the-secret-to-its-future-success-is-design

My question is if google will dock us for reprinting/reusing content on another site (even if it is a sister site within the same company). If they do frown on that, is there a proper way to attribute the content to the source material/site (fastcompany.com)?