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A WebmasterWorld thread has webmasters asking when did Microsoft Bing start showing authorship (or person schema in their search results.
It seems like Bing is not only showing the knowledge graph like details about people on the right, which they have done for a while. But also they are showing image thumbnails of the author's picture for that specific snippet.
Here is a search comparing [matt cutts] on both Google and Bing (click to enlarge):
As you can see, there is the thumbnail of Matt in the snippets on the left and then a very similar right hand side with Wikipedia bio, image, and related people (including myself and Danny Sullivan).
Forum discussion at WebmasterWorld.
