[sandspar]

Perhaps comparing your read/unread might tell something about your revealed vs stated preferences. I assume that the typical person's unread pile is mostly aspirational. I'm sure that there's lots of data on this - for example Amazon's recommendation graph may weigh our Wishlist items differently than our Purchased items.

[elcapitan]

I'm sure if you look long enough, you can find any pattern you want, and the opposite ;)