HDXCCthe Hoosier DX and Contest Club
Antenna Modeling
Antennas and propagation are key to DXing and contesting. Here are links to the best antenna modeling and propagation sites as well as the best, free, Windows based software for antenna modeling and propagation predictions.
Contesting SW
Logging SW
There are lots of contesting and logging programs available.  Here are links to what we consider the best, free, Windows based programs.  There are also links to free conversion programs to convert logs from one format to another.