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PubMed Commons to be Discontinued

This post was updated on February 27, 2018.

Update: NLM appreciates all of the input we have received in response to our February 1, 2018, announcement that PubMed Commons is being discontinued. Thank you for your thoughtful comments. We are heartened to hear that many of you found it to be a useful service.

As we mentioned in the announcement, comments on articles indexed in PubMed will continue to be visible on PubMed and PubMed Commons through March 2, 2018, after which time they will be available for download from NCBI’s website. NLM again thanks all of you who participated in PubMed Commons for your interest and effort.


PubMed Commons has been a valuable experiment in supporting discussion of published scientific literature. The service was first introduced as a pilot project in the fall of 2013 and was reviewed in 2015. Despite low levels of use at that time, NIH decided to extend the effort for another year or two in hopes that participation would increase. Unfortunately, usage has remained minimal, with comments submitted on only 6,000 of the 28 million articles indexed in PubMed.

While many worthwhile comments were made through the service during its 4 years of operation, NIH has decided that the low level of participation does not warrant continued investment in the project, particularly given the availability of other commenting venues.

The discontinuation plan is as follows:

Many thanks to all of you who participated in this experimental effort to enhance the opportunities for interaction about published biomedical literature.

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