Although Google Universal Search (GUS) is still very much in flux, it’s been a part of the SEO landscape for a while now. In that time, there have been some good studies about how often GUS presents video results, and some research into how it ranks videos versus text pages.
One aspect of GUS that’s been mentioned anecdotally is its preference for videos hosted by other Google properties: YouTube and Google Video. A few explanations have been offered for this behavior:
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