Several topics raised in this post -- with some aspects also touching on cultural issues, demography and migration trends as well as radio...1). Is Pittsburgh the largest media market without a Hispanic-targeted radio station?2). Back in the Porky Chedwick era, WAMO/860 pulled signficant shares of the white audience. Among my peers in the 60's it was generally an AM preset on the old car radios along with KQV and later WIXZ. Does the present-day WAMO still pull a sizable non-black audience?After having recently re-read Stephan Lorant's epic ``PITTSBURGH: The Story of an American City'', I was struck by how many so-called ``nationality'' programs were once aired on district radio stations. Likewise, there was a larger market segment of black population years ago in the region than today. Radio, of course, reflects the demographic makeup. So, to the larger issue, what's happened over the past several decades in Pittsburgh to become less diverse? In particular, what factors contribute to its near-negligble Hispanic population? Is there anything more than ``...the mills are gone''?