This database from the Jet Propulsion Lab at the California Institute of Technology includes physical parameters of extragalactic objects, abstracts of journal articles and theses. The database is searchable by object name, position, and characteristics.
This site contains a series of educational modules and simulations. Of particular interest are the Science for the 21st century and the VRML Gallery of Physics sections. PhysicsWeb - sponsored by the Institute of Physics.
Nicholas Stone of the Oxford University Physics Department's Clarendon Laboratory has compiled a Table of Nuclear Moments, a revision of the table compiled by P. Raghaven. This table is available at Brookhaven National Laboratory's National Nuclear Data Center.