European Space Agency
European Space Agency: Ulysses Overview
This resource presents extensive information about Ulysses and its mission to the sun.
Other
Imperial College London: Space Missions: Ulysses
Has a basic description of the Ulysses mission, along with explanations of some of the instruments and data.
NASA
Nasa: Ulysses: Missions to Our Solar System
A basic informational resource about Ulysses describing the spacecraft and its payload. There is also a mission time table showing what Ulysses has done and will do.
Other
Ulysses Space Probe Makes Surprise Trip Into Comet's Tail
An interesting article about a surprising finding on Ulysses' second orbit.