Annual Reviews ( AR ) recently announced that over the next 18 months it aims to make its entire portfolio of 51 academic journals freely available under a new journal publication model known as Subscribe to Open ( S2O ).
Annual Reviews is a pioneer of S2O, having first trialled it in 2017 with its journal Annual Review of Public Health . A number of AR’s other journals have subsequently been converted to S2O and the publisher is now hoping to migrate its entire journal portfolio to the new model.
What is S2O? The S2O Community of Practice web site describes it in this way: