2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/1706The masses of the central black holes of Active Galactic Nuclei estimated by the reverberation virial technique seem to be significantly smaller than predicted from the black hole mass-bulge luminosity relation for massive black holes detected by kinematic methods in less active and normal galaxies. We reexamine the relation for updated data and suggest a few reasons that may cause this discrepancy.10 pages, 2 figures, to appear in "Probing the Physics of AGN by Multiwavelength Monitoring", ASPAstrophysicstext