Pleiades.stoa.org is a free, open, and flexible online database containing information on over 34,000 ancient places referenced in literature, inscriptions, papyri, and other sources. The database can be cited, linked to via stable URIs, downloaded in various formats, reused, remixed, and shared under a CC-BY open license. It is maintained by 10 editors, 5 reviewers, and 97 contributors, and sees around 32,000 page views per month from engaged users who view an average of 9 pages over 11 seconds per session.