Youreka Science. (2016). Youreka Science: What Are Preprints? . IBiology. https://www.ibiology.org/biomedical-workforce/preprints/
Elsevier. (2021). Journals Article Sharing: Policies. Elsevier.com. www.elsevier.com/about/policies/sharing#definitions.
Publishers and journals have a varying opinion on the use and existence of preprints before publication in a journal. Use the following database to get a sense of their policies while keeping in mind that you should go to their actual website for confirmation.
Transpose - A database of journal policies on peer review, co-reviewing, and preprinting
You don't want to place your preprint just anywhere. The National Institutes of health provides some guidance for selecting a preprint repository.
Interim research products rely on repositories to make them public. The repository market is growing rapidly, and in many scientific disciplines, norms for interim research products are still evolving.
The NIH would like to ensure that practices for interim products facilitate the impact, measurement and the integrity of the scientific record. Specifically, the NIH strongly encourages interim research products arising from NIH funds to be deposited in repositories that ensure:
National Institutes of Health. (2017). NOT-OD-17-050: Reporting preprints and other interim research products. Reporting Preprints and Other Interim Research Products. https://grants.nih.gov/grants/guide/notice-files/not-od-17-050.html
The following is a list of some of the most well-known preprint servers.
"A free preprint service for the psychological sciences Maintained by The Society for the Improvement of Psychological Science"
Open science preprints
"PLOS is a nonprofit, Open Access publisher empowering researchers to accelerate progress in science and medicine by leading a transformation in research communication."