CelesTrak  Satellite Tracking Software Index
Gpredict  Linux, BSD, Windows, and Mac OS X
Keplerian TLE's (Amateur Satellites)
Keplerian TLE's - AMSAT
Keplerian TLE's - CelesTrak
MacDoppler Pro  OSX, Mac OS 9.1 - Commercial (demo available)
Northern Lights Software - Satellite Tracking
Nova for Windows  Commercial (demo available)
Orbitron  Windows - Cardware
PetitTrack  Embedded Linux - Freeware (GPL)
PocketSat+  PalmOS, WindowsCE 3.0 - Shareware
Portable Predict+  OSX, Linux, SunOS and Windows - Freeware (GPL)
Predict  OSX, Linux, SunOS and Windows - Freeware (GPL)
Predict Satellite Passes Over North America
SatPC32  Windows - Commercial (demo available)
Satscape  Windows, Mac OS and Linux
SCRAP 3-D Satellite Display and Analysis Tool  Windows - Commercial (demo available)
Tracksat  WindowsCE 3.0 - Shareware
UISS  Windows  (Packet station software) - Donation
WinOrbit  Windows - Freeware
WinTrak Pro  Windows 32-bit Win95/98/NT/2000/ME/XP - Commercial
WiSP  Windows (Packet station software) - Commercial