  We demonstrate a strong correlation between supermassive black hole (SMBH)
mass and the global structure of ellipticals and bulges: more centrally
concentrated bulges and ellipticals (higher Sersic index $n$) host higher-mass
black holes. This correlation is as good as that previously found between SMBH
mass and central velocity dispersion, with comparable scatter. In addition, by
carefully modeling the bulges of disk galaxies so that bars, inner disks, and
the like do not accidentally contribute to bulge light, we find that the
correlation between SMBH mass and bulge or elliptical luminosity is similarly
close.
