Presented at the 2013 Aquarius/SAC-D Science Team MeetingThe Physical Oceanography Distributed Active Center (PO.DAAC) serves as the designated NASA repository and distribution node for all Aquarius/SAC-D data products in close collaboration with the project. Here we report on the status of Aquarius data holdings at PO.DAAC, observed patterns of usage of these data sets, and the range of data services and access tools that we provide in support of this mission. Particular emphasis is placed on new tools and services that will be available online for the upcoming Aquarius v3.0 dataset release. These range from OPeNDAP and THREDDS data access services, to web-based visualization via PO.DAAC's State of the Ocean (SOTO) tool and LAS, to PO.DAAC's new, advanced L2 subsetting tool called HITIDE (High-level Tool for Interactive Data Extraction). Dataset discovery via the PO.DAAC web-portal, and user services are also described.