Flavor changing radiative decays of the b-quark have long been 
considered a key channel to search for physics beyond the Standard
Model. Unfortunately, the theoretical uncertainty in the rate of such
decays places a limit on the precision to which the Standard Model can
be tested.

Although the rate of, for instance, b to s gamma is subject to QCD
related theoretical uncertainties, the Standard Model polarization of
the photon produced in this decay is cleanly predicted. Thus,
observables sensitive to the polarization of the photon may indicate the
presence of new physics even if the rate is within the bounds predicted
by the Standard Model. 

In this talk I will discuss which polarization dependent observables may
be measured experimentally, the new physics which could give rise to
such signals, the resent experimental results in this area and suggest
how the statistics of such results may be improved.