Six examples of quasars with weak emission lines from the WLQ sample. For comparison the quasar composite spectrum from Vanden Berk et al. (2001; smooth red curve) is over-plotted, shifted to the redshift of the quasar and normalised to the total flux density between 3900 Å and 9000 Å (observer frame). At the top of each panel, the SDSS name, the redshift z, and the parameter FFT = first_fr_type (0 – not detected by FIRST; 1 – core-dominated radio source) from the Shen catalogue are given. The dotted vertical lines indicate the usually strong emission lines.