  We review the theory and present status of the proton spin problem with
emphasis on possible gluonic and sea contributions. We discuss the possibility
of a J=1 fixed pole correction to the Ellis-Jaffe sum rule for polarized deep
inelastic scattering. Fixed poles in the real part of the forward Compton
scattering amplitude have the potential to induce subtraction constant
corrections to sum rules for photon nucleon scattering.
