politics

Eisen has previously been a frequent, feisty participant in debates about scientific publishing, doggedly supporting the development of free access to journal articles. In 2003, he co-founded the Public Library of Science (PLOS), whose journal PLOS ONE grew to become one of the largest open-access journals. Authors pay a fee so that their articles in PLOS journals are free to read when published.

Eisen has criticized the paywalls still in place at many subscription journals as slowing the progress of science and the diffusion of useful findings. But critics of PLOS's model have suggested author fees create an incentive for journals to maximize the number of papers published at the expense of adequate peer review and quality and can create barriers for authors with limited resources.