  New experiments designed to discover a weakly interacting dark matter (DM)
particle via spin dependent scattering can distinguish models of electroweak
symmetry breaking. The plane of spin dependent versus spin independent DM
scattering cross sections is a powerful model diagnostic. We detail
representative predictions of mSUGRA, singlet extended SM and MSSM, a new Dirac
neutrino, Littlest Higgs with T-parity (LHT) and Minimal Universal Extra
Dimensions (mUED) models. Of these models, the nMSSM has the largest spin
dependent (SD) cross section. It has a very light neutralino which would give
lower energy nuclear recoils. The Focus Point region of mSUGRA, mUED and the
right handed neutrino also predict a very large SD cross section and predict a
large signal of high energy neutrinos in the IceCube experiment from
annihilations of dark matter in the Sun. We also describe a model independent
treatment of the scattering of DM particles of different intrinsic spins.
