Growth of the open access movement and current issues

Abstract

This article overviews the background and the history of the open access (OA) movement, and summarizes current issues of OA. It has been revealed that Gold OA is sustainable business model. Whereas Green OA with institutional repositories has not been a success, there are some successful examples with funder mandates for OA. In addition, funders, institutions and governments which mandate OA for researchers have been increasing. Commercial publishers adopt Gold or hybrid OA in their business and compete librarians for initiative of the OA movement. In this situation, availability of OA contents and embargo periods have been the issues of today's OA movement.