I can remember going to elementary school in Valley Stream (right over the Queens line in Nassau) when we experienced an influx of kids who were fleeing places like Canarsie and other parts of South Brooklyn. The interesting thing about your borough is that the influx of yuppies into places like Park Slope, Carroll Gardens and Williamsburgh has been exceeded by an outflow of lower middle class, largely Italian whites from places like Bensonhurst, Bergen Beach, Bay Ridge, etc., over the past decade. For better AND for worse, "old Brooklyn" is no more.
Very true. But such shifts have been the norm for NYC since the industrial revolution.