https://www.erowid.org/
https://examine.com/
https://druginfo.nlm.nih.gov/drugportal/
https://tripsafe.org/
https://www.consumeresponsibly.org/
https://rollsafe.org/
https://psychonautwiki.org/wiki/Responsible_drug_use
http://sideeffects.embl.de/
http://www.vigiaccess.org/