  The 2dF Galaxy Redshift Survey has now been completed and has mapped the
three-dimensional distribution, and hence clustering, of galaxies in exquisite
detail over an unprecedentedly large ($\sim 10^{8} h^{-3}$ Mpc$^{3}$) volume of
the local Universe. Here we highlight some of the major results to come from
studies of clustering within the survey: galaxy correlation function and power
spectrum analyses and the constraints they have placed on cosmological
parameters; the luminosity functions of rich galaxy clusters, their dependence
on global cluster properties and galaxy type, and how they compare with the
field; and the variation of galactic star formation activity with environment,
both within clusters and in galaxy groups.
