Useful links related to library, books, online journals
 collected by Christian Elsholtz
 Databases 
 Mathscinet (The database based on the Mathematical Reviews).
Subscription required.
Figures: in 2012 about 2.8 million items (from about 1940-today), often with direct link to
 original articles. Run by the AMS.
Bielefeld
Bonn
Providence
   
Zentralblatt MATH,
 advanced search
Note:  nonsubscribers have restricted access (3 items per search, 
only)
Link
Das Jahrbuch über die Fortschritte der Mathematik
covers very old items, 1868-1942. Will be integrated in Zentralblatt MATH.
Web of Science, including
Science Citation Index (the last years only)
(which articles cite a given article?
Note that MathScinet also has similar features.)
Direct Link:
Journal ranking, (the usual caution is recommended).
ranking.
Google Scholar
(Which articles/manuscripts cite a given article)?
  Mathematical  Societies 
 IMU
 EMS
 LMS
 AMS
 MAA
DMV
OeMG
 Mathnet 
 Mathnet 
departments
links to math departments in UK and Ireland
 Florida State Uni: Links
to Math. Departments worldwide
 search engines 
Google
   
AltaVista
yahoo.com
Teoma
 Journals 
 
List of many journals (all subjects) (Regensburg)
list of maths journals: Penn State Uni
The UMCP Math Department Electronic Journal Page
Springer (also Birkhaeuser) Journals
Science Direct, Elsevier, Academic Press)
Front End of the largest Maths/Physics Preprint Server arXiv,
CS/Maths/Physics arXiv
front end of the arxiv
Citeseer (very good in discrete maths, and Computer science)
JSTOR, 
JSTOR, mathematics
 (many digitized old journals (for example Am Math Monthly),
and also copies of recent journals, 
such as Annals of Mathematics.
Emani some digitized (old) journals
(including Mathematische Annalen, 
Crelle etc.
Numdam some back volumes of French digitized journals.
Journals for free.
 Virtual libraries with many further links 
Math-Guide Göttingen 
Florida State University Mathematics WWW Virtual Library 
Mathematics Web Sites around the world (Penn State Uni) 
Mathematical Atlas
Eric Weisstein's World of Mathematics
The Mathematics Archives
Mathematical Links (from the Number Theory Web) 
Science Math Archiv/
 Publishers, book stores etc. 
publishers, libraries, book sellers (international)  
 Amazon UK 
 Amazon Deutschland  
   Amazon.com
central  antiquarian bookshops directory
Bibliofind
special disciplines: 
 Number theory
Number Theory Web (Main site)
/Cambridge
Number Theory Math (many links)
The On-Line Encyclopedia of Integer Sequences (OEIS)
 Cryptography.
 eprint server plenty of preprints.
Many cryptography resources
can be found on Prof Anshel's webapge
 Combinatorics/Graphtheory etc.
Combinatorics People
Combinatorics Net
The Electronic Journal of Combinatorics
and The World Combinatorics Exchange
dmanet Koeln
Graph theory white pages
Paderborner lecture notes archive (mainly Computer science)
 Probability
Probability Web
 Geometrie
Eppsteins junkyard
Other Stuff
History of Maths (St. Andrews) 
Wikipedia 
Mathoverflow 
Math.Stack Exchange 
list of Maths blogs  
 
another list of Maths blogs  
 
Mathworld (Wolfram, Eric Weisstein) many good definitions etc
Latex, short guide, AMS, pdf file
Some links on how to write Maths follow.
Hints on Style, by David Goss
Mathematical Writing by D.Knuth, T.Larrabee, 
P.Roberts  
 Writing a Math Phase Two Paper by S.L. Kleiman 
Citing your sources, (UC Berkeley)
Thesis advisors, Genealogy
Pathological examples in  analysis
leo's Deutsch-Englisch/Englisch-Deutsch-dictionary 
(raw translator)
 
altavista's babel fish (raw translator)
 Legal Disclaimer
This is a collection of links that were 
useful at the time I added them to the list.
Each webpage however can contain links that are linked to pages with 
eventually less useful pages. 
Moreover webpages can have changed their contents after I 
included them. 
The use of this webpage implies that any legal risks 
are entirely on the user's side.
Should web pages be outdated or misleading, please let me know.
Christian Elsholtz.