Mining the local Universe: the QSO space density

. We present progress results of a new survey for bright QSOs ( V < 14 . 5, R < 15 . 4, B J < 15 . 2) covering the whole sky at high galactic latitudes, | b | > 30. The surface density of QSOs brighter than B J = 14 . 8 turns out to be 2 . 9 ± 0 . 8 · 10 − 3 deg − 2 . The optical Luminosity Function at 0 . 04 < z ≤ 0 . 3 shows significant departures from the standard pure luminosity evolution, providing new insights in the modelling of the QSO phenomenon.