  We present a review of the masses (except for neutrino masses) and
interaction strengths in the standard model. Special emphasis is put on
quantities that have been determined with significantly improved precision in
the last few years. In particular, a number of determinations of $\alpha_s$ and
the electromagnetic coupling on the $Z$, $\alpha_{\rm QED}(M_Z^2)$ are
presented and their implications for the Higgs mass discussed; the best
prediction that results for this last quantity being $$M_H=102^{+54}_{-36}
GeV/c^2.$$ Besides this, we also discuss a few extra precision tests of the
standard model: the electron magnetic moment and dipole moment, and the muon
magnetic moment.
