Yet another commercial publisher has established a hybrid journal option for its articles. This time, it's the American Chemical Society (ACS). Beginning in October, authors in ACS journals will be able to provide free online access to their articles for a fee; this charge will range from $1,000 to $3,000 US, "depending on whether the author is an ACS member or is affiliated with an institution that subscribes to ACS journals". Authors will also be able to place their articles on their personal websites and in institutional repositories.
No word on whether or not there will be any changes to subscription costs (as there will be with the Cambridge OA project).
There is a news release about the ACS OA option at http://tinyurl.co.uk/4mug. Peter Suber, as always, has some interesting things to say about this development; see http://tinyurl.co.uk/8p86
Perhaps, soon, we'll be asking ourselves, "which commercial publishers do not have a hybrid journals program"?