Introduction: The Language of Social Media; Philip Seargeant and Caroline Tagg PART I: THE PERFORMANCE OF IDENTITY ON SOCIAL MEDIA 1. The Performance of a Ludic Self on Social Network(ing) Sites; Ana Deumert 2. Hoaxes, Hacking and Humour: Analysing Impersonated Identity on Social Network Sites; Ruth Page 3. 'Usually not one to complain but…': Constructing Identities in User-generated Online Reviews; Camilla Vásquez 4. Language Choice and Self-presentation in Social Media: The Case of University Students in Hong Kong; Carmen Lee 5. Entextualization and Resemiotization as Resources for Identification in Social Media; Sirpa Leppänen, Samu Kytölä, Henna Jousmäki, Saija Peuronen and Elina Westinen PART II: THE CONSTRUCTION OF COMMUNITY ON SOCIAL MEDIA 6. CoffeeTweets: Bonding around the Bean on Twitter; Michele Zappavigna 7. Audience Design and Language Choice in the Construction and Maintenance of Translocal Communities on Social Network Sites; Caroline Tagg and Philip Seargeant 8. Youth,Social Media and Connectivity in Japan; Toshie Takahashi 9. Investigating Language Policy in Social Media: Translation Practices on Facebook; Aoife Lenihan 10. Seeing Red: Social Media and Football Fan Activism; Frank Monaghan