Public Event Explorer
The public event display of the Pierre Auger Observatory is hosted at CNEA in Argentina (please note that it does take a while to to load up).
The CNEA website allows browsing over the events collected since 2004, and is updated daily. You can enter an event Id in the search window, search for an event with the event selection menu, or display an event already in cache. You can also download an ascii file with all events.
Guide To Downloading and Formatting Pierre Auger Observatory Data
Guide To Making an Energy Histogram Using Pierre Auger Observatory Surface Detector Data