OA 2013: Tilting at the Tipping Point - Open Access Archivangelism

Use the link to access the full text blog post summarized as follows: "The findings of Eric Archambault’s (2013) pilot study 'The Tipping Point - Open Access Comes of Age' on the percentage of OA that is currently available are very timely, welcome and promising. The study finds that the percentage of articles published in 2008 that are OA in 2013 is between 42-48%. It does not estimate, however, when in that 5-year interval the articles were made OA. Hence the study cannot indicate what percentage of articles being published in 2013 is being made OA in 2013. Nor can it indicate what percentage of articles published before 2013 is OA in 2013. The only way to find that out is through a separate analysis of immediate Gold OA, delayed Gold OA, immediate Green OA, and delayed Green OA, by discipline."