This is something interesting I just found.
It seems that barely a month after the confirmation of the existence of a super massive black hole at the center of our galaxy (something that had been suspected for quite some time), a team of Finnish scientists have proved that black holes "preceded galaxies"
"We finally have been able to measure black-hole and bulge masses in several galaxies seen as they were in the first billion years after the Big Bang," said co-author Fabian Walter of the Max-Planck Institute for Radioastronomy (MPIfR) in Bonn, Germany.Read the full BBC artical here
"The evidence suggests that the constant ratio seen [in nearby galaxies] may not hold in the early Universe."
He added: "The implication is that the black holes started growing first."