The Sustainable Development Issues Network (SDIN) is a coalition of nongovernmental issue-based caucuses and networks established during the year before the World Summit on Sustainable Development. The purpose of the coalition is to provide mutual support and exchange of information among NGO caucuses and networks promoting sustainable development. We would like to announce and invite you to join a new listserver (http://sdissues.net/sdin/discuss.aspx) hosted by SDIN to encourage substantive discussion and dialogue on the important issues and strategies of concern in the World Summit on Sustainable Development. In the remaining weeks before the Summit there are many topics and questions of concern to participants and observers that will need to be addressed by NGOs.