Shifting ItemTo The Top When It Is Viewed

This is a nice feature of Google Reader, when an item is viewed, it will shift the item to the top of the view.

Open any item: it will be shifted to the top.



Hit 'j', it will open the next item and shift it to the top.



This actually helps me with quick scanning the items: instead of hitting page down to expose the next headline, I always see it and immediately hit 'n' to skip it.