The MonetDB project has moved to http://www.monetdb.org/.
OpenSiteSearch is the new Open Source version of OCLC's original java-based web application for building Z39.50 portals (i.e. virtual union catalogues). This project is specifically aimed at the library community.
ARSperl is an integration kit for Perl5 and Remedy ARSystem API. It provides a large subset of the functionality found in the ARS C API https://github.com/jeffmurphy/ARSperl