Review on B oscillations

Measurements of B/sub d/ oscillations from CDF, LEP and SLD experiments are reviewed and their world averages are presented. Time-dependent and time-integrated mixing measurements are combined with direct reconstruction of specific final states to obtain the best estimate of the B species production fractions from b-quark hadronization. Finally, searches for B/sub s/ oscillations at CDF, LEP and SLD are reviewed, presenting the combined result. An emphasis is put on recent results, as well as perspectives for the near future. (17 refs).