Simple Satellite Tracker: International Space Station, ISS Toolbag, Hubble Space Telescope
  US and Canadian readers, enter your zip code below, hit Go!, and you will find out what is going to fly over your area in the nights ahead. There are hundreds of satellites in Earth orbit; we cut through the confusion by narrowing the list to a half-dozen or so of the most interesting. At the moment we are monitoring a number of spy satellites, the International Space Station, and the Hubble Space Telescope. Feedback is welcomed.
Global Flybys
Use this link if you are not in the USA or Canada