Sub-GeV dark matter is a theoretically motivated but largely unexplored paradigm of dark matter. In this talk, I will describe how one can use the scattering of dark matter off of electrons to search for sub-GeV dark matter. I will present some motivated models that can be probed with these techniques as well as projections for current and near-term semiconductor experiments. Finally, I will discuss some new techniques that may allow us to reach unprecedented sensitivity for sub-GeV dark matter.