New information has been provided by SHERPA services that shows encouraging statistics for journals in the SHERPA/RoMEO* database. Their blog headline states that 60% of journals allow immediate self-archiving of peer-reviewed articles. When embargoes are taken into account, this rises to 80%.
This means that authors can make their final author versions, or in some cases the publisher's pdf, available online via the 'green' open access route. This can usually be done by depositing in a repository such as Research@StAndrews:FullText - for St Andrews authors that means simply adding an author version to their publication in PURE. The Library will do the rest, including applying any embargo.
See more about open access on our library web pages.
If we consider all versions of an article, including the submitted (pre-print) version, 87% of journals allow immediate open access self-archiving. And if we take into account all versions, embargoes, and restrictions such as special permissions or fees, 95% of journals formally allow self-archiving. These detailed statistics are now possible because RoMEO provides publisher policies at journal level. As of 15 Nov 2011 the database held approximately 19,000 journal titles.
SHERPA Services blog
*RoMEO is a searchable database of publisher's policies regarding the self-archiving of journal articles on the web and in Open Access repositories.