Friends: Here is an article you might wish to read. Antelman, Kristin. "[7]Do Open-Access Articles Have a Greater Research Impact?" [8]College & Research Libraries 65(5) (September 2004): 372-382. (http://eprints.rclis.org/archive/00002309/). - For those who have been working to create open access repositories of research and scholarship, this article is a godsend. Antelman performed a formal study of whether open access articles are cited more frequently than those only available through subscription services. The short answer is "yes". For the long answer, as well as to review her methodology, see the (yes) open access article. Arun [Subbiah Arunachalam] OA and research impact Friends: Here is an article you might wish to read. Antelman, Kristin.  "[7]Do Open-Access Articles Have a Greater      Research Impact?"  [8]College & Research Libraries   65(5)      (September 2004):  372-382.      ( http://eprints.rclis.org/archive/00002309/ http://eprints.rclis.org/archive/00002309/ ). - For those who have      been working to create open access repositories of research and      scholarship, this article is a godsend. Antelman performed a formal      study of whether open access articles are cited more frequently      than those only available through subscription services. The short      answer is "yes". For the long answer, as well as to review her      methodology, see the (yes) open access article. Arun [Subbiah Arunachalam]