Facebook notes

You’ll be able to create important notes on the web, and they’re fully viewable on mobile. To see the notes your friends have written or of your own, visitFacebook.com/notes or search “notes” on mobile.

With this update, you can add a cover photo that represents what your note is all about. You can caption and resize photos, and format your text into headers, quotes or bullets.

More info.  http://newsroom.fb.com/news/2015/09/updates-for-facebook-notes/