Physics and Astronomy

ADS Abstracts Service

arXiv e-Print Server 

Open access e-print server (formerly LANL Physics E-Prints Archive) condensed matter, general relativity, high energy physics, mathematical physics, nuclear physics, general physics, quantum physics, mathematics, nonlinear sciences, and computer science.  Cornell University

Chemical Physics Preprint Database 
Fully automated electronic archive and distribution server for the international theoretical chemistry community

CERN Document Server
Over 900,000 bibliographic records, including 360,000 full-text documents, of interest to people working in particle physics and related areas. Covers preprints, articles, books, journals, photographs.

Space Telescope Science Institute (STScI) Preprints

SPIRES-HEP Search 
Stanford University

Mathematical Physics PrePrint Archive 
University of Texas at Austin