Particle Physics - http://www.eagle.co.uk/ppj/home.html Experimental endorsement and alerting service, lists preprints selected by experts; stopped updating in 1997. Also books for sale.
Physics Letters B - http://www.elsevier.com/wps/find/journaldescription.cws_home/505706/description Journal of nuclear physics and particle physics, published by Elsevier Science. Papers available by subscription, table of contents accessible free.
Beam Line - http://www.slac.stanford.edu/pubs/beamline/beamline.html Quarterly periodical of particle physics, at SLAC.
Physical Review D, Journal - http://prd.aps.org/ Particles, Fields, Gravitation and Cosmology. Full papers only available on subscription. However, abstracts of papers accessible by everybody.
Physical Review Letters Online - http://prl.aps.org/ Full papers only available on subscription. However, abstracts of papers accessible by everybody.
Los Alamos Science - http://www.fas.org/sgp/othergov/doe/lanl/pubs/LaScience.htm Journal that provides a forum for scientists and engineers at Los Alamos National Laboratory.
CERN Courier - http://www.cerncourier.com Magazine for particle physicists.
KISS - http://www-lib.kek.jp/KISS/kiss_prepri.html KEK Information Service System; preprint database at KEK.
Fields - http://arxiv.org/abs/hep-th/9912205 Free comprehensive graduate textbook on quantum and classical field theory.
CERN Document Server - http://cds.cern.ch/ Over 430,000 bibliographic records and 170,000 fulltext documents about CERN and high-energy physics. Covers preprints, books, periodicals, reports, and photographs.