Elsevier has just announced in its third open letter to the mathematics community (how much does that sound like a Papal Bull?) that all of the archived material from its “primary mathematics journals” is now free to access.

This completes the process begun in April, when they made everything published after 1995 and before 2008 free. From now on, all articles in the affected journals will be made free to access four years after publication ((Sadly, because this is Elsevier, the articles are only available through the user-contemptuous ScienceDirect, so the incidence of heads being banged on desks is likely to go up once people start trying to access it and encountering the site’s maddeningly hyperactive sliding toolbars)). The journals involved include Advances in Mathematics, Discrete Mathematics, and the Journal of Algebra. It looks like each journal now has a prominent “Open Archive” section on its homepage, containing a list of recently dispaywalled articles.