If you are a researcher and you don't know where to upload your datasets to make them accessible and citable, we recommend you to visit re3data.org, the global registry of research data repositories. There you can browse the biggest database of research data repositories by subject, content type or country.
Remember to check the upper right corner of the results to make sure the repository assigns persistent identifiers to its records!
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If you have any questions, requests or ideas please contact us!