  We extend the Brown and York notion of quasilocal energy to include coupled
electromagnetic and dilaton fields and also allow for spatial boundaries that
are not orthogonal to the foliation of the spacetime. We investigate how the
quasilocal quantities measured by sets of observers transform with respect to
boosts. As a natural application of this work we investigate the naked black
holes of Horowitz and Ross calculating the quasilocal energies measured by
static versus infalling observers.
