At the time of writing, there were 33464 files in the Commons category Open access (publishing), of which 9401 were used a total of 98460 times across the main namespaces of Wikimedia projects. So far, these wiki pages were thought to receive a daily average of about 1 million page views, but since December 2015, these page views are calculated using the new Wikimedia pageview API, according to which the number is about twice as high.
Recent uploads: data citation, dino jaw, dozens of beetles
The following represents a selection of the files that have been uploaded this month from open-access sources. Most of these came from PubMed Central through the Open Access Media Importer, whose uploads now total over 21,300. If you can think of wiki pages where these files (or other files from the same source articles) could be useful, please put them in there or let us know.