(USA) MSRI - Mathematical Sciences Research Institute, Berkeley, CA.(Austria) ESI - Erwin Schrodinger Institute, Vienna, Austria.
(Germany) MPIM Bonn - Max Planck Institute for Mathematics.
(Turkey) Middle East Technical University - Department of Mathematics preprint archive.
(USA) UC Davis - Math Department, University of California, Davis, CA; ArXiv overlay.
(France) IRMA Strasbourg - Institut de Recherche Mathématique Avancée, University of Strasbourg.
(USA) Oklahoma State University - Math Department, Stillwater, OK; ArXiv overlay.
(USA) IMA - Institute for Mathematics and its Applications, Minneapolis, MN.
(France) CAMS - Centre d'Analyse et de Mathématique Sociales, EHESS, Paris, France.
(USA) University of Kansas - Math Department, Lawrence, KS.
(USA) UT Austin - Math Department, University of Texas, Austin, TX.
(USA) Louisiana State University - Math Department, Baton Rouge, LA.
(USA) UIUC - Math Department, University of Illinois, Urbana-Champaign, IL.
(USA) George Washington University - Math Department, George Washington University, Washington, DC.
(USA) Florida State University - Math Department, Florida State University, Tallahassee, FL.
(USA) CNA - Center for Nonlinear Analysis, Carnegie-Mellon University, Pittsburgh, PA.
(USA) UC Santa Barbara - Math Department, University of California, Santa Barbara, CA.
(USA) IMI South Carolina - Industrial Mathematics Institute, University of South Carolina, Columbia, SC.
(UK) University of Durham - Geometry and arithmetic preprints.
(Russia) St. Petersburg Mathematical Society - Preprint collection open to members of the Society. TeX and/or PostScript format.
(Germany) University of Bielefeld - Diskrete Strukturen in der Mathematik preprints from 1989. Compressed PostScript.
(Czech Republic) KMA - Department of Mathematical Analysis, Charles University.
(Canada) CRM Montreal - Technical reports of the Centre de Recherches Mathématiques, Montreal, Canada.
(Spain) CRM Barcelona - Publications of the Centre de Recerca Matemàtica, Barcelona.
(USA) UCLA - Math Department, University of California, Los Angeles, CA.
(Netherlands) CWI Amsterdam - Research reports, journals, monographs and proceedings.
(UK) Isaac Newton Institute, Cambridge - Books arising from Institute Programmes.
(UK) University of Cambridge - Statistical Laboratory Research Reports.
(UK) University of Oxford - Mathematical Institute.
(Norway) NTNU Trondheim - Preprint Series, Department of Mathematical Sciences, Norwegian University of Science and Technology, Trondheim.
(Germany) Kiel University - Mathematics Seminar Reports.
(USA) IMS Stony Brook - Institute for Mathematical Sciences Preprint Server, SUNY Stony Brook, NY. ArXiv mirrored.
(USA) American Institute of Mathematics - Mainly in number theory. From 1998, PS and PDF.
(Denmark) IMADA Odense - Department of Mathematics and Computer Sscience, University of Southern Denmark/Odense University.
(Italy) INFN Rome - Mathematical Physics, Roma La Sapienza, Rome.
(Denmark) MaPhySto, Aarhus - Center for Mathematical Physics and Stochastics.
(USA) Duke University - Mathematics Department, Duke University, Durham, NC.
(Germany) TU Darmstadt - Department of Mathematics, Darmstadt University of Technology.
(USA) DIMACS - Center for Discrete Mathematics and Theoretical Computer Science, Rutgers, New Jersey.
(Germany) FU Berlin - Math Department, Free University of Berlin, Germany.
(Germany) Konrad-Zuse Center for Scientific Computation, Berlin - Preprints and technical reports from 1986, indexed by year.
(Italy) ICTP - Preprints issued at the Abdus Salam International Centre for Theoretical Physics, Trieste, Italy. Searchable.
(UK) Isaac Newton Institute, Cambridge - Mathematical Sciences preprints.
(France) IHES - L'Institut des Hautes Etudes Scientifiques, Bures-sur-Yvette, France.
(Germany) Humboldt Universität, Berlin - Mathematics Institutes, Humboldt University, Berlin, Germany.
(Australia) IGA Adelaide - Institute for Geometry and its Applications, Adelaide, NSW, Australia.
(Denmark) University of Aarhus - Department of Mathematical Sciences.
(UK) University of Bristol - Applied Nonlinear Mathematics, Faculty of Engineering.
(France) INRIA - National institute for research in computer science and control. Research reports, technical reports, theses.
(Germany) Universität Osnabrück - Department of Mathematics and Computer Science.
(Germany) University of Hannover - Mathematics Institute.
(Czech Republic) KAM/DIMATIA - Prepublication medium for Department of Applied Mathematics (KAM), Charles University, Prague. (400 items)
(Germany) KANT Group - Technical University of Berlin.
(USA) GANG Document Library - Center for Geometry, Analysis, Numerics and Graphics. Organised by date, author.
(Japan) JAMS - Japanese Association of Mathematical Sciences, Osaka.
(USA) Northwestern University - Mathematics Department, Evanston, IL.
(Hungary) Alfréd Rényi Institute, Budapest - Preprints by author.
(USA) University of Kentucky - Department of Mathematics, Lexington, KY.
(Japan) Keio University - Department of Mathematics Research Reports. (DVI, PS, PDF).
(UK) BRIMS - Technical Reports of the Basic Research Institute in the Mathematical Sciences, Bristol.
(Canada) CECM - Centre for Experimental and Constructive Mathematics preprint service.
(USA) Argonne National Laboratory, Math and Computer Science Division - Technical report anonymous ftp area. Most documents are available in compressed dvi or compressed postscript.
(USA) Institute for Scientific Computation, Texas - Technical Report Series from 1994.
(UK) University of Cambridge - Department of Applied Mathematics and Theoretical Physics searchable preprint database.
(UK) University of Leicester - Mathematics and computer science technical reports from 1995.
(UK) South Bank University - Computing, Information Systems and Mathematics Technical Reports from 1993.
(Germany) Albert-Ludwigs-Universität Freiburg - Mathematics Faculty preprints from 1995.
German Mathematics Departments Serving Preprints - A sensitive map.
(France) Institut Elie Cartan, Nancy - Preprints. Abstracts; papers in PS format.
(UK) University of Southampton - Pure Mathematics Group Preprints from 1995.
(UK) University of East Anglia - School of Mathematics publication search.
(Germany) Universität Halle-Wittenberg - Department of Mathematics and Computer Science, Martin-Luther-Universität Halle-Wittenberg.
(UK) University of Glasgow - Preprint archive from 1995.
(UK) University of East Anglia - Pure Mathematics Preprints.
(Belgium) Katholieke Universiteit Leuven - Numerical Analysis, Applied Mathematics and Computer Science Publications.
(Belgium) Limburgs Universitair Centrum - Algebra group preprint archive.
(Netherlands) CWI Amsterdam - Technical Reports available by FTP in compressed PostScript, listed by subject and date.
(Belgium) University of Louvain - Searchable preprint archive.
(Japan) Kyoto University Department of Mathematics - Searchable preprint collection from 1993.
(Vietnam) Hanoi Institute of Mathematics - E-preprints archive from 1998. Abstracts, text in PostScript.
(Canada) Fields Institute, Toronto - Preprints rom 1996, indexed by year and subject.
(Germany) Magdeburg University - Faculty of Mathematics preprints and technical reports by year from 1994, searchable.
(UK) University of Bath - Mathematics Group preprints by year from 1993.
(Netherlands) Universiteit van Amsterdam - Korteweg-de Vries Institute Mathematical Preprint Series. ArXiv overlay.
(Italy) Pisa - Calculus of variations and geometric measure theory papers from 1995.
