The new Ocean and Weather Data Navigator website includes near-realtime data from major and global oceanic and atmospheric observing systems, such as Argo, TAO, NDBC Meteorology data, Global Summary of the Day weather data, and the newly released World Ocean Data Base. Features similar to Google Maps allow the user to smoothly and quickly select one or more Observing System stations, zooming in or out, or dragging different parts of the map into the viewing area, and then plot the data. Data can be downloaded into spreadsheet, GIS and Google Earth compatible formats. Data can be used over the network from Matlab and GrADS via new OPeNDAP interfaces. The underlying OPeNDAP dapper implementation is the basis of the new OPeNDAP standards specification for in-situ data.