  Globular clusters could harbor massive central black holes (BHs), just as
galaxies do. So far, no unambiguous detection of a massive BH has been reported
for any globular cluster. However, the dense core-collapsed cluster M15 seems
to be a good candidate. I review the available photometric and kinematic data
for this cluster. Both are consistent with a BH of approximately 2000 solar
masses, although such a BH is not unambiguously required by the data. I discuss
some ongoing studies with Keck and HST which should shed more light on this
issue in the coming years.
