  New preliminary combined results from the LEP experiments on searches for the
Higgs boson beyond the Standard Model are presented. The new determination of
the top quark mass at the Tevatron in 2004 influences the interpretations of
the LEP results in both, the Standard Model, and the Minimal Supersymmetric
extension of the Standard Model. Higgs boson physics will also be a major
research area at the future Linear Collider. A review including new preliminary
results on the potential for precision measurements is given.
