I will discuss ideas and prospects to search for sub-GeV dark matter, below the typical thresholds of current direct detection experiments. While WIMP dark matter with mass above a GeV is increasingly constrained, there is a wide landscape of interesting candidates that may require new kinds of direct detection targets. I will highlight examples covering the meV-GeV mass range, including prospects for absorption of bosonic dark matter with current semiconductor targets as well as proposals to detect scattering of sub-MeV dark matter.