Don't be a WIMP - new ideas for light dark matter

In spite of the overwhelming evidence for the existence of dark matter, its properties remain elusive. I review the global effort to search for dark matter and discuss the implications of the present absence of new signals. A consistent combination of all available information mounts pressure on the idea of Weakly Interacting Massive Particles, which may point to a production mechanism in the Early Universe different from thermal freeze-out. I review a number of attractive alternatives and discuss their theoretical and experimental implications.