Facebook appears to be testing yet another new module in its news feed, this time aggregating the most shared content from social reader applications such as that of The Washington Post.

Some Facebook users are seeing the module below in their news feeds, which lists the most shared stories from social reader apps, in this case, The Washington Post.

Readers: Have you seen this module in your news feed?

Thank you to Blink Vice President of Media Eti Suruzon for the tip and screen grab.