Correlation of selected infall groups’ direction of angular momentum at the present day. The correlation function is the excess of pairs compared to an isotropic distribution on a given angular separation, α_L. The different colours correspond to our different selections. The solid line represents the median correlation of our different group samples, with the 1σ scatter (16–84%) within our sample given by the shaded regions. The triangles at α_L = 0^o correspond to the (median) correlation amplitude on the smallest scale for the different selections at the time of infall.