The exchange of ideas concerning the magnetopause and its boundary layers was the primary purpose of the informal workshop, “Plasma Physics of the Earth's Magnetopause and its Boundary Layers,” held at Los Alamos National Laboratory, Los Alamos, N. Mex., October 2–4. The workshop was supported by LANL Institute of Geophysics and Planetary Physics, and attendance was restricted to about 35 people in order to maintain a small, informal character for the workshop. Although no global consensus emerged at the workshop, discussions were lively and conclusions were reached in several areas. Some of these conclusions concerning where past research has brought us and where future research is likely to lead us are described below.