From: "Mr. Gunn" <[log in to unmask]>:
Date: Thu, 30 Aug 2012 14:09:22 -0500

This is actually a somewhat hard thing to do, because of all the
journals that use the hybrid OA model. We really need a service that
works at the article level via DOI or something to enable the OA
status of a particular item to be determined.

William Gunn