Search for [gout] on Bing and you will see a brand new "feature" in the search results.
Bing now will show you the full article and content from some partner third-party sites directly on Bing. Bing adds a link to "Read the full article by Mayo Clinic" and links to a Bing Health web page, which is content licensed and paid for by Bing.
Here is a screen shot of the Bing Search Results:
Here is a screen shot of the landing page on Bing Health:
A WebmasterWorld thread has BingDude, an official Microsoft Bing representative explaining the rational for this:
Folks have to keep in mind that Bing is a decision engine, focused on "task completion". We've stated this from the outset, so trying things like these types of tests help us determine if this type of SERP behaviour strikes a positive or non-positive note with searchers.
How can I get Bing to license my content? And do I want them to? At least they aren't just scrapping it and showing it to users without paying for it.
Forum discussion at WebmasterWorld.
Update: This actually is not new, Matt covered this at SEL back in 2010.
