All Things D
Liz Gannes asks why it seems every time she visits Facebook she is "greeted front and center with a box of stories that my friends have read on The Washington Post." The answer is: the box in the Facebook news feed highlights reading activity from a new class of Facebook apps that automatically share what users read. It just happens that The Washington Post Social Reader is one of only a few of these "open graph" apps launched so far, so it appears frequently in this "recently read" box. || Earlier: "Frictionless sharing" pushes boundaries of online privacy | Don Graham says social news unlocks the "great mystery" of young readers