168 The Conservation GeoPortal (http://www.conservationmaps.org) is a new collaborative effort to build, share, and communicate geospatial information for biodiversity conservation. This work supports the principles and objectives of the Conservation Commons and is the first phase of developing a World Conservation Basemap and World Atlas of Conservation. The GeoPortal is primarily an Internet-based metadata catalog with a map viewer, intended to provide a comprehensive listing of GIS data sets and map services relevant to biodiversity conservation. This presentation will describe the process and framework used to develop the Conservation GeoPortal and will suggest ways that the Open Source Geospatial Foundation (OSGeo) can benefit and contribute. FOSS4G2006 - Free And Open Source Software for Geoinformatics Session 8 : Use - FOSS and NONFOSS Ned Horning horning@amnh.org Biasi Frank fbiasi@tnc.org Ned Horning horning@amnh.org <MaKaC.conference.ContributionType object at 0xb49ab4ec>