Citation impact of Open Access journals


Marie E. McVeigh, Product Development Manager, Thomson-ISI, 3501 Market Street, Philadelphia, PA 19104 and James Testa, Director, Editorial Development, Thomson Scientific, 3501 Market Street, Philadelphia, PA 19104.
Open Access (OA) represents one of the most significant changes to scientific publishing in recent years. But has Open Access fundamentally changed the dynamics of scholarly citation? We have studied the citation behavior of OA journals compared to journals of similar size and scope that maintain a traditional subscription model. Year 2002 data on 191 OA journals in the ISI citation databases suggest that offering unrestricted access to journal contents on the web does not, itself, ensure higher citation activity to the journal. We will present data from the year 2003 Journal Citation Reports™, comparing journal citation metrics between OA and non-OA publications. A particular focus will be placed on Chemistry journals, with several aspects of their citation dynamics examined in detail.