Neutrino Oscillation Scenarios and GUT Model Predictions
  The present experimental situation regarding neutrino oscillations is first summarized, followed by an overview of selected grand unified models which have been proposed to explain the various scenarios with three active neutrinos and their right-handed counterparts. Special attention is given to the general features of the models and their ability to favor some scenarios over others. 
Carl H. Albright (Fermilab)