Chiral Dynamics in Nucleons and Nuclei - A review (in Postscript format) of the implications of the spontaneous chiral symmetry breaking in QCD for processes involving one, two or more nucleons.
Chiral Perturbation Theory - An online course in Postscript format on the modern methods of Chiral Perturbation Theory.
Fields - The first free comprehensive textbook on quantum (and classical) field theory. It includes practical techniques, and diverse topics as well as introductions to supergravity and strings.