Chapter 1.- In the Suicide Forest.- Chapter 2- Commendary Culture.-Chapter 3.- The Numbers Game.- Chapter 4.- The Business of News Sharing.-Chapter 5.- What we share: genre and topicality on Facebook and Twitter.-Chapter 6.- The Language and news values of 'most shared' news.- Chapter 7.- Affect and the motivation to share.- Chapter 8.- Media Pluralism Policies and the Implications of Social News Sharing.- Chapter 9.- Understanding Viral News Sharing.-...