The Physical Oceanography Distributed Active Archive Center (PO.DAAC) is NASA’s data center responsible for data management and distribution of satellite oceanographic data, as well as providing support for its scientific user base. PO.DAAC’s data holdings relevant to Ocean Surface Topography include sea surface height and significant wave height from TOPEX/Poseidon, Jason-1, OSTM/Jason-2, SARAL/AltiKa and gravity measurements from GRACE. Our data holdings are constantly being updated to accommodate improved algorithms that evolve through time. Technologies for distributing data are also changing to accommodate the heterogeneity of data and increasing volumes. This presentation will go over the latest in data services at PO.DAAC for accessing, distributing and visualizing data. The transition of FTP to HTTPS and user registration will also be discussed and what users can expect in the change.