One of the pressing scientific questions of our time is, what is the nature of the dark matter? The evidence for dark matter is overwhelming, but we know very little about its properties. There is an intense world-wide effort underway to directly detect dark matter in the laboratory. Much of this effort is directed toward detecting so-called WIMPs: neutral particles with a mass and an interaction cross section with our matter characteristic of the weak interaction. I'll discuss the approach that the `Cryogenic Dark Matter Search' or CDMS collaboration has taken to detect WIMPs, where we listen for the sound that WIMPs might make in germanium crystals at temperatures near absolute zero. Recently, our sensitivity to WIMP dark matter at our experiment at the Soudan Mine in northern Minnesota has become the best in the world.