2. Where Can I Find Preprints?
Preprints are housed on servers that are commonly hosted by universities, non-profit organizations, and publishers. There are general preprint repositories, like arXiv; field-specific repositories like bioRxiv, EarthArXiv and ChemRxiv; geography-specific repositories like AfricArxiv; and preprint services integrated into publisher submission workflows like Research Square (Springer Nature) and Authorea (Wiley).
Examples of Preprint Repositories
|Research Square (Springer Nature)||Publisher submission workflows||https://www.researchsquare.com/|
|Authorea (Wiley)||Publisher submission workflows||https://wileyopenresearch.authorea.com/|
Preprint servers for physics, math and social sciences have existed for many decades. Servers for preprints in health and biomedicine are generally much younger. Some well-known biomedical preprint servers are bioRxiv, which launched in 2013, and medRxiv, which began accepting papers in mid-2019.
You can find a directory of preprint servers at ASAPbio . Make sure to scroll to the bottom of the page.