Astronomy traces its roots to our early struggle to understand the wanderings
of planets within our solar system. We still search for an understanding of our
solar system in the scheme of stellar formation. The search for extra-solar
planets is difficult. Many of the best candidates have, surprisingly, not been
found near main sequence stars, but around pulsars, the spinning, magnetized
neutron star remnants of supernova explosions. We can apply the phase analysis
techniques used successfully with pulsars to another class of variables. White
dwarfs, the endpoints of stellar evolution for most stars, experience a quieter
birth than pulsars. While a pulsar's planetary companions are probably second
generation objects, planets around white dwarfs are almost certainly surviving
members of original systems, and more closely related to our solar system.
We present current limits on white dwarf planetary systems, and discuss future
work.