PLOS (Public Library of Science) is a nonprofit publisher and advocacy organization founded to accelerate progress in science and medicine by leading a transformation in research communication. PLOS entered the publishing arena in October 2003 with the launch of PLOS Biology, followed in October 2004 by PLOS Medicine. Today, it publishes a suite of influential Open Access journals across all areas of science and medicine. The Max Planck Society covers article-processing charges for Max Planck authors centrally. Further details are available on the MPDL website.

Portland Press Limited, the wholly-owned trading subsidiary of the Biochemical Society, is a leading innovative publisher of journals, books and electronic resources. The platform provides Max Planck researchers with selective access to the full texts of journals owned by the Biochemical Society, see link "eJournals licensed" below. The MPG subscription also covers article-processing charges for Max Planck authors in all Portland Press/Biochemical Society journals. Further details are available on the MPDL website.