Elsevier has just gone from being a Romeo "Pale-Green" publisher to a full Romeo Green publisher: authors have the publisher's official green light to self-archive both their pre-refereeing preprints and their refereed postprints.Elsevier has thereby demonstrated that -- whatever its pricing policy may be -- it is a publisher that has heeded the need and the expressed desire of the research community for Open Access (OA) and its benefits to research productivity and progress.
Source: boaiforum messages.
On green and gold open access, see this Nature publishing group article.
