Multidisciplinary Digital Publishing Institute, is a platform for peer-reviewed, scientific open-access journals operated by MDPI AG, based in Basel, Switzerland. Additional offices are located in Beijing and Wuhan, China. MDPI publishes over 120 diverse open access electronic journals, including Molecules (launched in 1996; Impact Factor 2.416), the International Journal of Molecular Sciences (launched in 2000; Impact Factor 2.862), Sensors (launched in 2001; Impact Factor 2.245), Marine Drugs (launched in 2003; Impact Factor 2.853), Energies (launched in 2008; Impact Factor 2.072), the International Journal of Environmental Research and Public Health (launched in 2004; Impact Factor 2.063), Viruses (launched in 2009; Impact Factor 3.353), Remote Sensing (launched in 2009; Impact Factor 3.180), Toxins (launched in 2009; Impact Factor 2.938) and Nutrients (launched in 2009; Impact Factor 3.270). Our publishing activities are supported by more than 6500 active scientists on our journals' international editorial boards, including several Nobelists. More than 120,000 individual authors have already published with MDPI, and 350,000 scholars are in the pool of reviewers. MDPI.com receives more than 3.8 million monthly webpage views.