With the discovery of neutrino oscillations and the  
resulting measurement of lepton flavor mixing, new and exciting  
facets of the flavor puzzle of the Standard Model have been  
revealed.  In this talk, two stories will be told about the  
possible origins of ultralight neutrino masses and large lepton  
flavor mixing angles.  The first is about the possibility of  
naturally suppressed Dirac neutrino masses in models with  
additional low energy gauge symmetries.  The second focuses on  
using icosahedral (A5) flavor symmetry to implement the intriguing  
idea that the solar neutrino mixing angle is related to the famed  
"golden ratio."