[en] This is a summary of some of the work carried out in electroweak physics by the author in collaboration with postdoctoral fellows and students at Oregon, and other colleagues around the world. The past five years have been extraordinarily productive with over thirty refereed publications and over ten presentations in major conferences. The impact of the work on the field has been very significant, especially that related to B physics. In most cases the work is either inspired by experiments or has important consequences for future experiments. The work completed covers a broad spectrum of topics, and can be divided roughly into the following four categories: (1) rare B decays and methods of measuring CP violation at B factories; (2) models of CP violation and their consequences; (3) neutrino properties; and (4) grand unification and its low energy consequences