“Approximately 17% of the 1.66 million articles published during 2011 and indexed in the most comprehensive article-level index of scholarly articles (Scopus) are available OA through journal publishers, most articles immediately (12%) but some within 12 months of publication (5%).” say Mikael Laakso and Bo-Christer Björk in their recently published study Anatomy of open access publishing: a study of longitudinal development and internal structure.

Open Access Growth in economic science, PhD-Comics, SCOAP-critics, ORCID online.

Linked article in German.