Open Conference Systems (OCS) is a free Web publishing tool that will create a complete Web presence for your scholarly conference. Open Conference Systems (OCS) is an open source solution to managing and publishing scholarly conferences online. OCS is a highly flexible management and publishing system that can be downloaded for free and installed on a local Web server. It has been designed to reduce the time and energy devoted to the clerical and managerial tasks associated with managing a conference, while improving the record-keeping and efficiency of editorial processes. It seeks to improve the scholarly and public quality of conference publishing through a number of innovations, from making policies more transparent to improving indexing.