Fuchs, Christian. 2017. Social Media: A Critical Introduction. London: 
Sage. 2nd edition.

More info, classroom materials and the sample chapter "What are Social 
Media and Big Data?" can be found at:
http://fuchs.uti.at/books/2nd-edition-social-media-a-critical-introduction/

With social media changing how we use and understand everything from 
communication and the news to transport, more than ever it is essential 
to ask the right kinds of questions about the business and politics of 
social media. This book equips students with the critical thinking they 
need to understand the complexities and contradictions and make informed 
judgements.

This Second Edition:
- Lays bare the structures and power relations at the heart of our media 
landscape.
- Explores the sharing economy of Uber and Airbnb in a brand new chapter.
- Takes us into the politics and economy of social media in China
- Puts forward powerful arguments for how to achieve a social media that 
serves the purposes of a just and fair world
--
Digital Objects, Digital Subjects: An Interdisciplinary Symposium on 
Activism, Research & Critique in the Age of Big Data Capitalism, May 
20-21 @ University of Westminster, Registration:
http://icts-and-society.net/events/digital-objects-digital-subjects-a-symposium-on-activism-research-critique-in-the-age-of-big-data-capitalism-the-6th-icts-society-conference/