  We outline the important role that ground-based, Doppler monitoring of
exoplanetary systems will play in advancing our theories of planet formation
and dynamical evolution. A census of planetary systems requires a well designed
survey to be executed over the course of a decade or longer. A coordinated
survey to monitor several thousand targets each at ~1000 epochs (~3-5 million
new observations) will require roughly 40 dedicated spectrographs. We advocate
for improvements in data management, data sharing, analysis techniques, and
software testing, as well as possible changes to the funding structures for
exoplanet science.
