Preprints and Working Papers

Astronomy and Astrophysics Preprints
Chemistry Preprints
Computation and Language Preprints
Economics Working Papers
Mathematics Preprints

General e-Print Archives
Subject-based Archives
Departmental or Institutional

Nonlinear Sciences Preprints
Physics Preprints

Astronomy and Astrophysics Preprints

American Physical Society E-print Server
http://publish.aps.org/eprint/

ApJ Yellow Pages (Papers Submitted to Selected Astronomical Publications)
http://www.noao.edu/apj/ypages/yp.html

CERN Preprints Catalogue (European Laboratory for Particle Physics, Geneva, Switzerland/France) http://alice.cern.ch/cgi-bin/mkpage?/all/all/all/Preprints/complex/2/0: ALICE - CERN's Library Catalogue
http://alice.cern.ch/

High Energy Physics Database - Make Your Own Search (Stanford Linear Accelerator Center)
http://www-spires.slac.stanford.edu/find/hep

Los Alamos xxx e-Print Archives
http://xxx.lanl.gov/

National Radio Astronomy Observatory: NRAO Preprints and Published Papers: General Information
http://info.cv.nrao.edu/html/library/intro_preprints.html

NRAO Full-Text Preprints
http://www.cv.nrao.edu/library/nrao_preprints.html

NRAO RAPsheet
http://info.cv.nrao.edu/html/library/nrao-raps.html

One-Shot World-Wide Preprints Search (Abdus Salam Int'l. Centre for Theoretical Physics, Trieste, Italy) http://www.ictp.trieste.it/indexes/preprints.html: Preprints Issued at ICTP
http://www.ictp.trieste.it/~pub_off/

Space Telescope Science Institute (STScI) STEPsheet
http://sesame.stsci.edu/lib/stsci-preprint-db.html

Chemistry Preprints

Chemical Physics Preprint Database (Brown University)
http://www.chem.brown.edu/chem-ph/available-bullboards.html

Computation and Language Preprints

Los Alamos xxx e-Print Archives
http://xxx.lanl.gov/

Economics Working Papers

Economics Working Papers
http://www-sul.stanford.edu/depts/ssrg/econ/econ1.html#Section4

Mathematics Preprints

* General e-print archives

American Mathematical Society Preprints
http://www.ams.org/preprints/

The Fields Institute Preprints and Reports
http://www.fields.utoronto.ca/preprints/FI/

Front for the xxx e-Print Mathematics Archive
http://front.math.ucdavis.edu/

This is supposedly the best approach to the Los Alamos e-Print Archives.: Los Alamos e-Print Archives (xxx)
http://xxx.lanl.gov/

One-Shot World-Wide Preprints Search
http://www.ictp.trieste.it/indexes/preprints.html

* Subject-based archives

Algebraic-Number-Theory (University of Illinois at Urbana)
http://www.math.uiuc.edu/Algebraic-Number-Theory/

Algebraic Topology (Purdue University)
http://hopf.math.purdue.edu

Analysis (Kyoto)
ftp://ftp.kurims.kyoto-u.ac.jp/kyoto-net

Conservation Laws Preprint Server (Norwegian University of Science and Technology, Trondheim, Norway)
http://www.math.ntnu.no/conservation/

Differential Geometry (Mathematical Sciences Research Institute)
http://lefty.msri.org/publications/eprints/dg-ga.html

The European Singularities Network Archive
http://www.mi.aau.dk/~esn/

K-theory (University of Illinois at Urbana)
http://www.math.uiuc.edu/K-theory/

MAGNUS Preprint Archive - Geometric and Combinatorial Group Theory
http://zebra.sci.ccny.cuny.edu/web/html/old.html

Mathematical Physics Preprint Archive mp_arc (University of Texas at Austin)
http://www.ma.utexas.edu:80/mp_arc/mp_arc-home.html

MGNet (Yale University)
http://casper.cs.yale.edu/mgnet/www/mgnet.html

Probability Abstract Server (University of Washington)
http://www.math.washington.edu/~prob/

Representations and Cohomology of Groups Preprint Archive (University of Georgia)
http://www.math.uga.edu/~djb/archive.html

Topology Atlas (Nipissing University, Canada)
http://www.unipissing.ca/topology/

* Departmental or institutional archives

CERN Preprints Catalogue
http://alice.cern.ch/cgi-bin/mkpage?/all/all/all/Preprints/complex/2/0

ALICE - CERN's Library Catalogue
http://alice.cern.ch/

Florida State University e-Print Archive
http://www.math.fsu.edu/~aluffi/eprint.archive.html

Geometric Analysis server at the Center for Geometry, Analysis, Numerics and Graphics (GANG) at the University of Massachusetts at Amherst
http://www.gang.umass.edu/

Institute for Mathematical Sciences Preprint Server (SUNY Stony Brook)
http://math.sunysb.edu/preprints.html

The Institute for Mathematics and its Applications (Minneapolis)
http://www.ima.umn.edu/

Mathematical Sciences Research Institute Preprints
http://lefty.msri.org/publications/preprints/

Max Planck institute of mathematics preprint server
http://www.mpim-bonn.mpg.de/html/preprints/preprints.html

University of California, Berkeley
ftp://math.berkeley.edu/pub/Preprints/

UW Math Preprints (University of Wisconsin)
http://www.math.wisc.edu/Preprints/index.html

Nonlinear Sciences Preprints