  We review some recent determinations of the amount of dark matter on galactic
and larger scales, with special attention to the dark matter in the Milky Way.
We then briefly review the motivation for and basic physics of several dark
matter candidates, and then go into more depth for two candidates, the
neutralino from supersymmetry, and the baryonic Macho candidate. We give some
motivation for supersymmetry and review neutralino detection strategies. For
Machos we give a description of the discovery of Machos via gravitational
microlensing and the interpretation of the results with respect to the dark
matter problem.
