  Hadronic resonances serve as unique probes in the study of the hot and dense
nuclear matter produced in heavy-ion collisions. Properties of the hadronic
phase of the collision can be extracted from measurements of the suppression of
resonance yields. A comparison of the transverse-momentum spectra of the
phi(1020) meson and the proton (which have similar masses) can be used to study
particle production mechanisms. Resonance measurements in pp collisions provide
input for tuning QCD-inspired particle production models and serve as reference
measurements for other collision systems. Measurements of resonances in p-Pb
collisions allow nuclear effects in the absence of a hot and dense final state
to be studied. The ALICE Collaboration has measured resonances in pp, p-Pb, and
Pb-Pb collisions. These measurements will be discussed and compared to results
from other experiments and to theoretical models.
