Stellar mass black hole X-ray binaries (BHXRBs) and active galactic nuclei (AGNs) are both powered
by accretion on to a black hole and in many cases, emit radiation over several decades of frequency and have
relativistic jets. This has led to the paradigm that these two systems are fundamentally similar with
characteristic time and size scales linearly scaled by the mass of the central black hole. In the fist half of
this talk, I shall show evidence supporting the above paradigm from extensive multi-wavelength monitoring of
two radio galaxies 3C 120 and 3C 111.
In the second half of this talk, I shall give an introduction to Fermi Gamma-Ray Space Telescope which is
providing unprecedented details of the gamma-ray sky since 2008. Then I shall report on some recent results
from the Fermi/SMARTS project at Yale which is carrying out supporting optical-near infrared monitoring of all
bright Fermi blazars in the southern sky.
