  I present a brief review on the motivation for the study on Lorentz violation
and on some of our studies with phenomenological analysis of Lorentz violation
effects. I also discuss three effective field theory frameworks for Lorentz
violation: the Coleman-Glashow model, the standard model extension (SME), and
the standard model supplement (SMS). The situation of the OPERA "anomaly" is
also briefly reviewed, together with some discussion on the superluminality of
neutrinos within the effective field theory frameworks.
