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Below is a link to an article in The Scientist discussing the recent Elsevir agreement with Carnegie Mellon, another agreement with Sweden, and the continued non-agreement with the University of California.
Elsevier Progresses in Open-Access Deal Making
by Diana Kwon for The Scientist blog, Dec 2, 2019
Your network editor has reposted this from The H-Net Book Channel. The byline reflects the original authorship.
The H-Net book channel has developed an open access resource list (below).
In addition, you will find many articles and discussions of open access on H-Scholar. Just search under terms such as "open access" and "scholarly communication."