Want to find out what your favorite journal's open access policy is? Search for the journal title in SHERPA/RoMEO to find out what you are permitted to do with your article post-publication.
Green: archive pre-print, post-print or publisher's PDF
Blue: post-print (final draft post-refereeing) or publisher's PDF
Yellow: pre-print (pre-refereeing)
White: Archiving not formally supported
Remember that you can ALWAYS ask to retain the right to self-archive your article!