"The Guardian Facebook app is a way of reading and sharing Guardian content from within Facebook. If you choose to use the app, then when you follow links to the Guardian's website, you will be shown the content on a Facebook page. This enables you to see what your friends are also reading from the Guardian, and what is proving popular from the site amongst Facebook users. You will also be able to comment and discuss articles within Facebook."
(The Guardian, 22 September 2011)