  Baryons are complex systems of confined quarks and gluons and exhibit the
characteristic spectra of excited states. The systematics of the baryon
excitation spectrum is important to our understanding of the effective degrees
of freedom underlying nucleon matter. High-energy electrons and photons are a
remarkably clean probe of hadronic matter, providing a microscope for examining
the nucleon and the strong nuclear force. Current experimental efforts with the
CLAS spectrometer at Jefferson Laboratory utilize highly-polarized frozen-spin
targets in combination with polarized photon beams. The status of the recent
double-polarization experiments and some preliminary results are discussed in
this contribution.
