The W3C has been carrying out discussions in a URI Planning Interest Group to evaluate the opportunities for W3C work in the area of Uniform Resource Identifiers (URIs) and to develop a proposal for continued work. The type of issues considered have included creation of a standardized architecture for resolving URIs; infrastructure that would allow diverse, persistent URIs to be recognized and handled by web- aware software; collaboration with other standards agencies to make informal URI schemes formal. Some of these areas have been discussed informally within the IETF, and the purpose of this meeting is to raise awareness about potential W3C activity and discuss where joint IETF-W3C activity would be interesting and useful.