Google Authorship has been trending as a hot topic of over year now. There are 3 main ways you can claim your authorship and link your website’s content to your google profile / Gplus.
But once you have google keeping track of your online posting and allocating credit to you for the fine works you are contributing online, you must also be aware that you may take credit for things you never created or “Authored”. Google is still working out the bugs, but items that have meta-data and credits embeded.
In the article below discribes credits for VIDEO and PDFs
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