Social media: back to the roots and back to the future. - Andreas M. Kaplan; Michael Haenlein (J. Syst. Inf. Technol., 2012)

Social Media, Definition and History. - Andreas M. Kaplan (Encyclopedia of Social Network Analysis and Mining, 2014)

Social Media, Definition, and History. - Andreas M. Kaplan (Encyclopedia of Social Network Analysis and Mining. 2nd Ed., 2018)