This report provides a synthesis of marine monitoring activities that have taken place in the nearshore waters of the U.S. Virgin Islands between 1990 and the end of 2009. Summary metadata are provided that describe the monitoring programs, their implementing agency, the ecosystem components that are measured together with maps showing where the measurements were taken. This information is intended to facilitate data sharing and synergies between monitoring programs, inform and enhance strategic planning for regional and national monitoring, avoid duplication of effort and increase knowledge and awareness of the spatial, temporal and compositional characteristics of monitoring in the U.S. Virgin Islands. The information was compiled as a contribution to the Comprehensive Caribbean Coral Reef Ecosystem Monitoring Project (C-CCREMP) project funded by NOAA Coral Reef Conservation Program.