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

E-print database of mathematics and science papers with citation information. Papers may be added by specifying the URL where their files reside.

Covers many free full-text mathematics and scientific journals (most are peer reviewed).

Easiest search access to papers posted on the preeminent Los Alamos National Lab (LANL) Physics and Mathematics preprint server (arXiv).

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

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