  At ELSA interesting results on baryon resonances have been obtained by the
CB-ELSA, the CBELSA/TAPS and the SAPHIR collaborations. New resonances were
found, in particular a new $\rm D_{15}(2070)$ decaying into $p\eta$, was
recently observed by the CB-ELSA experiment. The availability of a polarized
beam and a polarized target did allow to measure the GDH sum rule up to 2.9
GeV. In the future double polarization experiments will be performed using the
Crystal Barrel detector together with new forward detector components. These
polarization observables will provide important additional information for the
partial wave analyses performed to extract the contributing resonances and
their parameters from the data.
