GeoShear
Strain program written by Chris Warren and Paul Karabinos at Williams College. Java, all platforms.
University of Wisconsin's deformation programs
A nice selection of strain programs that closely relate to Chapter 2 (Deformation).
Fault slip analysis, trishear (FaultFold) StrainSim and other programs for Mac and Windows by Rick Allmendinger.
Visually appealing trishear program doing forward trishear models in three dimensions. By Nestor Cardozo.
Orient
Frederic Vollmer'splotting software: Stereographic projections, circular histograms, spherical statistics, and fault slip and spacial analysis.
OSXStereonet
Superb stereo plotting program for Mac OSX by Nestor Cardozo and Richard Allmendinger.
Visible Geology (stereonet)
Stereo plotting program (web-based) that has a very nice 3D option. Also check out the other excellent 3D programs of Visible Geology.
Great plotting program that does stereonet projections, rose diagrams, Flinn plots, ternary plots and more. By Carlos Grohmann and G. Campanha.
Great programs for strain analysis and plotting in Flinn diagram, Hsu diagram and more. Requires Mathematica™. By Matty Mookerjee.
Two useful program written by Jiri Rez for Windows.