The WHOI Ship DataGrabber system provides the oceanographic community on-line access to underway ship data collected on the R/V Atlantis, Knorr, Oceanus, and Tioga (TBD). All the shipboard data is co-registered with the ship's GPS time and navigation systems. The system is built upon the methodology and technology developed for the Alvin Frame-Grabber and the JasonII Virtual Control Van system. A beta-version was deployed on the R/V Atlantis AT11-16 cruise in the summer of 2004 and the system has subsequently been installed on the R/V Knorr and Oceanus.