Google tests further Bingification, adds site previews to search results
As The Next Web reports, Google is playing with the idea of displaying website previews when a user hovers over a search result. Bing, of course, limits its previews to text snippets -- Google is opting for a screenshot-style image instead. Consider yourself flattered (again), Bing!
Site previews are only available to a limited number of users at the moment, so well keep you updated if and when Google decides to roll out the feature to everyone.