A brief overview of some recently active topics in perturbative QCD,
including: string-inspired recursion techniques at tree level; recursion
approaches and automation of standard techniques for 1-loop calculations; the
status of NNLO jet calculations; and non-trivial structures that appear in
higher-order calculations.Comment: 9 pages, 1 figure. Invited talk at the XIV International Workshop on
Deep Inelastic Scattering (DIS 2006), April 2006, Tsukuba, Japa
