This is a postprint of an article accepted for publication in Journal of the Association for Information Science and Technology copyright © 2014 (Association for Information Science and Technology). The paper can be cited as:

Mesgari, Mostafa, Chitu Okoli, Mohamad Mehdi, Finn Årup Nielsen and Arto Lanamäki (2014). “The sum of all human knowledge”: A systematic review of scholarly research on the content of Wikipedia. Journal of the Association for Information Science and Technology (Forthcoming since April 2014).