Not just a link preview

One of the coolest tools I have seen lately is Snap. I also use it in my blog (and it took 5 seconds to add..) but what people don't know is that on www.snap.com you can also perform web search. True, you dont get the 500M results of Google (and I will write another post on this issue seperately since the numbers of reslts you see on Google should be questioned...) however, how many times you were on Google's list and wanted to see what stands behind particular result without leaving the list. Snap's solution is so simple but so user friendly too, a preview which is pretty similar to reading pane in most of the common email applications.
Another nice solution for the same problem you can find in Walla Search where you can see the preview inline.