Windows tracking software; features include 3D maps and can track several hundred satellites simultaneously.

Graphical and real-time information on satellite locations.

Hardware/software products to receive data from weather satellites, for the amateur radio enthusiast

Free, real-time satellite tracking and orbit prediction software.

Information about AO-10, including status updates on a periodic basis.

Portal site listing a wide variety of information related to satellite tracking, including satellite list and news.

Satellite feeds, listings, and free channels across Europe.

Discusses main design goal of making satellite operations less complex and less expensive for operator on the ground. Includes photographs.

Given a file with satellites' Two-Line Element (TLE) you can calculate a list with the azimuth, elevation and range for any point on earth.

International amateur satellite organization - web site contains info about amateur satellites, operating information, status of individual satellites and an online tracking application.