  We have compiled a new and complete catalog of the main properties of the
1509 pulsars for which published information currently exists. The catalog
includes all spin-powered pulsars as well as anomalous X-ray pulsars and soft
gamma-ray repeaters showing coherent pulsed emission, but excludes
accretion-powered systems. References are given for all data listed. We have
also developed a new web interface for accessing and displaying either tabular
or plotted data with the option of selecting pulsars to be displayed via
logical conditions on parameter expressions. The web interface has an
``expert'' mode giving access to a wider range of parameters and allowing the
use of custom databases. For users with locally installed software and database
on unix or linux systems, the catalog may be accessed from a command-line
interface. C-language functions to access specified parameters are also
available. The catalog is updated from time to time to include new information.
