  The light-cone Fock-state representation of QCD encodes the properties of a
hadrons in terms of frame-independent wavefunctions, providing a systematic
framework for evaluating structure functions, exclusive hadronic matrix
elements, including time-like heavy hadron decay amplitudes, form factors, and
deeply virtual Compton scattering. A new type of jet production reaction,
"self-resolving diffractive interactions" can provide direct information on the
light-cone wavefunctions of hadrons in terms of their quark and gluon degrees
of freedom as well as the composition of nuclei in terms of their nucleon and
mesonic degrees of freedom. The relation of the intrinsic sea to the light-cone
wavefunctions is discussed. The decomposition of light-cone spin is illustrated
for the quantum fluctuations of an electron.
