  We present an electromagnetic analog of gravitational wave memory. That is,
we consider what change has occurred to a detector of electromagnetic radiation
after the wave has passed. Rather than a distortion in the detector, as occurs
in the gravitational wave case, we find a residual velocity (a "kick") to the
charges in the detector. In analogy with the two types of gravitational wave
memory ("ordinary" and "nonlinear") we find two types of electromagnetic kick.
