The author presents GNU Eprints. EPrints software has been created so that institutions can create OAI-compliant Archives quickly, easily and for free. OAI-compliance means all Archives created in this way are "interoperable." They use the same (OAI) convention for tagging their metadata (author, title, date, journal, etc.). That means the contents of all such Archives can be harvested integrated, navigated and searched seamlessly, as if they were all in one global "virtual" archive. The primary purpose of the EPrints software is to help create open access to the peer-reviewed research output of all scholarly and scientific research institutions (mainly universities). Maximizing the access to research findings maximizes their usage and their impact on further research, to the benefit of researchers, theit institutions, the society that supports research, and to research itself. The EPrints software was designed primarily to be used by researchers and their institutions to maximize the access to -- and hence the impact of -- their research output