Open Preprint Systems

The Public Knowledge Project (PKP), creators of the widely-used open source journal publishing software, Open Journal Systems, have just released the beta version of a new tool called Open Preprint Systems.  PKP have written a two-part blog post documenting their development of OPS (The Road to Preprints (Part 1): Introducing Open Preprint Systems, and The Road to Preprints (Part 2): SciELO’s Preprint Server) and you can find a description and demo of the software on the PKP website.