FreeHEP - Software and information about software which is useful in high energy physics and related fields.HEPpc - Linux resources for high energy physics, includes low traffic mailing list.
FeynArts - Mathematica package for generation and visualization of Feynman diagrams and amplitudes.
Monte Carlo Number Scheme - MC particle numbering convention, endorsed by Particle Data Group.
Software and Tools - List at HEPIC.
CompHEP - Calculates cross sections in high energy physics.
Phi (Phenomenology of Hadronic Interactions) - Extension of Mathematica packages and FeynCalc and FeynArts.
FeynCalc - Mathematica package for algebraic calculations in elementary particle physics, focusing on Feynman diagram calculations.
Feynmf - Drawing Feynman diagrams with LaTeX and Metafont.
