The subject of metal-insulator transitions came to a renewed focus in the twenty-five years, following the discovery of high temperature superconductivity, which triggered much activity in the study of” bad metals”. Many of the materials in this family consist of transition metal or even rare earth elements, corresponding to compounds which are essentially on the brink of magnetism. Here, conventional approaches proved of little help, but recent research has lead to a veritable avalanche of new and exciting ideas and techniques both on the experimental and the theoretical front. In the last twelve years, a systematic new approach to strong correlations has been developed, based on dynamical mean-field theory (DMFT) methods. Some of the subjects that we have introduced have, in the last few years, become topics of central interest and much activity. This is especially true for glassy phenomena that emerge in many electronic systems with disorder. Topics related to non-equilibrium quantum dynamics are subjects of several upcoming major international workshops and meetings.