NASA information on the International Space Station's whereabouts, Keplerian elements for the ISS and Shuttle, and sighting prediction information.

Keplerian elements for most satellites in low-earth orbit. Also includes historical archives dating back to 1980 and information about satellite tracking.

Information regarding amateur radio satellite communications. Also available are Keplerian elements in several formats, updated weekly.

Shows positions of satellites at any given moment in real or simulated time. Free download (Cardware). [multi-language]

Satellite tracking pass predictions includes by state listings, and related resources.

Resource includes visual and RF satellite contact schedules. [English]

Nova for Windows tracks an unlimited number of satellites in real time.

Real-time satellite, ISS, and Space Shuttle orbital pass information, maps, star and charts.

Advanced software, with features including antenna radiation maps for optimal satellite coverage.

Free satellite tracking software for Windows 3.x.