  We present a pedagogical review of particle physics models that are based on
the noncommutativity of space-time, $[\hat{x}_\mu,\hat{x}_\nu]=i \theta_{\mu
\nu}$, with specific attention to the phenomenology these models predict in
particle experiments either in existence or under development. We summarize
results obtained for high energy scattering such as would occur for example in
a future $e^+e^-$ linear collider with $\sqrt{s} = 500 GeV$, as well as low
energy experiments such as those pertaining to elementary electric dipole
moments and other $\cpviolng$ observables, and finally comment on the status of
phenomenological work in cosmology and extra dimensions.
