OIII λ5007 luminosity vs. black hole mass for AGNs selected according to the MIR and near-IR methods using the MEx line diagnostic diagrams (grey contours). Dashed line contours represent the corresponding values for highly accreting QSOs. Point lines from upper to lower right indicate ∼100%, ∼10%, and ∼1% of the Eddington limit, respectively, assuming bolometric correction 3500 for OIII luminosity (Heckman et al. 2004; Choi et al. 2009). Solid and dashed line bars represent the mean and 1σ values for our sample of AGNs and for the sample of highly accreting QSOs, respectively.