From an announcement on PAPY:
The Papyrological Navigator now resides at New York University.
Functionality remains the same. It is improved in many places, and minor
corrections associated with the migration are in process, but it is the
Earlier bookmarks may not work.
Start at http://papyri.info and click "Search the Navigator" or else go
straight to http://papyri.info/navigator/search
Please feel free to send feedback on functionality to Hugh Cayless
(hugh dot cayless at nyu dot edu)
Josh Sosin, Rodney Ast, James Cowey