OBIS is a web-based provider of global geo-referenced information on marine species. We contain expert species level and habitat level databases and provide a variety of spatial query tools for visualizing relationships among species and their environment. OBIS strives to assess and integrate biological, physical, and chemical oceanographic data from multiple sources. Users of OBIS, including researchers, students, and environmental managers, will gain a dynamic view of the multi-dimensional oceanic world. You can explore this constantly expanding and developing facility through the OBIS Portal.