These Five Corporations Control Academic Publishing - Vocativ

"An analysis of the 45 million documents indexed in the Web of Science, and recently published in PLoS, reveals that Reed-Elsevier, Springer, Wiley-Blackwell, Taylor & Francis and Sage published more than half of all academic papers in the peer-reviewed literature in 2013. The study suggests it may be time for scientists to move away from major for-profit publishing houses and take their research elsewhere."