The combination of high-performance computing, networked access to instruments and national facilities, rapid access to databases, grid computing and other technologies are collectively becoming known as Cyberinfrastructure. This is an area of very intense interest throughout the scientific community, and specifically for the research communities supported by the Division of Materials Research. Exactly how the promise of Cyberinfrastructure will be utilized in different areas of science varies with the needs of different communities. The purpose of this workshop is to identify how Cyberinfrastructure will be best utilized by the researchers and communities supported by DMR, and to suggest strategies for integrating Cyberinfrastructure into DMR research proposals, and into the comprehensive Cyberinfrastructure plan being developed by NSF.