[A new paper](https://crln.acrl.org/index.php/crlnews/article/view/24227) by Allison Langham-Putrow and Sunshine J. Carter on subscribe-to-open (S2O). It's an excellent overview—and well-timed, given Berghahn's [recent announcement](https://www.berghahnjournals.com/page/berghahn-open-anthro) of its successful pilot. (Disclosure: I work with [Libraria](http://libraria.cc), the group that helped Berghahn develop its pilot.)