Biodiversity Action Plan for Economic and Development Co-operation (EC, COM (2001) 162 final of 27 March 2001)
 Environment - Nature and Biodiversity (EC - DG ENV)
 European Community Biodiversity Clearing House Mechanism
 GEF Biodiversity Planning Support Programme
 Integration of Biodiversity Concerns in Climate Change Mitigation Activities - Toolkit (UMweltbundesamt, 2004)
 Millennium Ecosystem Assessment
 Strategic Environmental Assessment and Biodiversity: Guidance for practitioners, 06/2004
 UNEP - World Conservation Monitoring Centre
 UNEP Biodiversity homepage
 UNEP/GRID - Arendal Biodiversity page
 UNESCO - People, Biodiversity and Ecology
 World Atlas of Biodiversity

Please also check the "Multilateral environmental agreements" section under "Useful Links".