Sign up for The Amsat News Service (ANS) or join the AMSAT-UK Newsgroup
VHF Web SDR (Goonhilly Downs) Listen to satellites
Probably the best place to start learning about amateur radio satellites and how to access them is at this link.
Finding out when a satellite is passing overhead can be determined using some of the resources at this link
A beginners guide (Powerpoint about Satellites)
AMSAT Annual colloquia on You Tube
Dave Johnson G4DPZ recently gave an online satellite talk to the Mid Ulster Amateur Radio Club, the video is now available below (from YouTube)