What does a journal gain by depositing its content in PubMed Central?
A journal gets the benefit of a permanent and freely accessible archive, managed by the National Library of Medicine, at almost no cost to the publisher — merely what it costs to provide PMC a copy of its material. Every journal can request from NLM and receive, free, a copy of its archived content at any time. NLM’s experience in digital journal archiving is evident in its development of the publicly available Journal Archiving and Interchange XML DTD. The DTD has been endorsed by the US Library of Congress and the British Library as a standard for digital journal archiving. It also has been adopted by a number of publishers and other archives. Continued development of the DTD and related tools is actively supported by an advisory committee of XML experts representing the publishing, archiving, and software development communities. Participation in PMC usually improves the overall level of quality of a journal’s archival files, as explained in the answer to a related FAQ. The journal
