Google adds a preview pane that is eerily smilary to Bing. Monkey See, Monkey Do? I think so, at least this time around.
If the use of the little magnifying glass becomes prevalent, it will mean that it will be more important than ever to rank in the top 3 positions. But my guess is that this is just a test and Google will not leave it there for ever (at least not in its current form), as Paid Ads (Pos 4+) are covered, meaning people would have to click on something else other than paid ads = less money for big G.
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