The Galactic gravitational wave foreground

I present an overview of the Galactic binaries that form the foreground for the ESA/NASA Laser Interferometer Space Antenna (LISA). The currently known population is discussed as well as current and near-future large-scale surveys that will find new systems. The astrophysics that can be done when the LISA data become available is presented, with particular attention to verification binaries, the overall Galactic populations, neutron star and black hole binaries and sources in globular clusters. I discuss the synergy with electro-magnetic observations and correct an error in the estimate of the number of LISA systems that can be found in the optical compared to Nelemans (2006a American Institute of Phys. Conf. Ser. vol 873) and conclude that at least several hundreds of systems should be detectable.