  We have used QCD and polarized deep-inelastic scattering data to construct
x-dependent polarized parton distributions. These flavor dependent
distributions evolve under the NLO DGLAP equations, satisfy positivity
constraints and agree well with the data. We perform all of the analysis in
x-space, avoiding difficulties with moments, and use these distributions to
predict spin observables. The small-x behavior is sensitive to the model for
the polarized gluon distribution.
