Search enabled database of citations for a large selection of mathematical specialties. Authors may add bibliographic lists or contextual references to their work.

Aims to improve the dissemination and feedback of scientific literature, and to provide improvements in functionality, usability, availability, cost, comprehensiveness, efficiency, and timeliness. Rather than creating just another digital library, CiteSeer provides algorithms, techniques, and software that can be used in other digital libraries. CiteSeer indexes Postscript and PDF research articles on the Web, and provides a number of special features.

Experimental demonstration of the Open Citation Project. Search citations by paper or author.

Categorized, searchable links to free, full text, quality controlled scientific and scholarly journals.

U.S. Department of Energy's search interface. Many options for fine tuning a search.

User-friendly front end for the mathematics section of the arXiv (free).

At the American Mathematical Society.

Search enabled database of citations for a large selection of computer science specialties. Authors may add bibliographic lists or contextual references to their work.

Mathematics preprint search engine. Includes some European servers not covered elsewhere.

Searches a collection of mathematical and statistical preprint servers and databases.

Full text access to the journal Annals of Mathematics; a limited number of other journals available through paid subscriptions to Project Euclid.

E-Print search engine. Includes some archives not indexed by other engines (see the "Data Providers" pull-down menu). Use as a guest or register and receive free targeted alerts and other personalized features.