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arXiv.org provides "open access to 1,224,705 e-prints in Physics, Mathematics, Computer Science, Quantitative Biology, Quantitative Finance and Statistics. arXiv is maintained and operated by the Cornell University Library with guidance from the arXiv Scientific Advisory Board and the arXiv Member Advisory Board, and with the help of numerous subject moderators." -- arXiv.org website
The National Technical Information Library is a federally funded bibliographic science and technology research information database. To search the database and to download full text pdf's you will need to create a FREE account, which limits you to 10 downloads per search session. Currently there are more than 850,000 documents digitized for free public access.
"Science.gov searches over 60 databases and over 2200 selected websites from 15 federal agencies, offering 200 million pages of authoritative U.S. government science information including research and development results." -- Science.gov website
"The Technical Report Archive & Image Library (TRAIL) identifies, acquires, catalogs, digitizes and provides unrestricted access to U.S. government agency technical reports." -- TRAIL website
" The mission of TRAIL is to ensure preservation, discoverability, and persistent open access to government technical publications regardless of form or format. TRAIL provides unrestricted access to these digitized technical reports through the TRAIL Search Interface (link is external). Millions of pages of elusive technical reports are now discoverable, thanks to the collaborative effort of TRAIL members." -- TRAIL website
"MathSciNet® is an electronic publication of the American Mathematical Society (AMS) offering access to a carefully maintained and easily searchable database of reviews, abstracts and bibliographic information for much of the mathematical sciences literature. Over 100,000 new items are added each year, most of them classified according to the Mathematics Subject Classification. Continuing in the tradition of the paper publication, Mathematical Reviews (MR), which was first published in 1940, expert reviewers are selected by a staff of professional mathematicians to write reviews of the current published literature; over 40,000 reviews are added to the database each year." -- EBSCO
"You can find on this website the full text of mathematical research documents: journal articles, seminar and conference proceedings, books and monographs, doctoral theses. While a large part of the content has been digitised starting first known issue from paper volumes, the library acquires newer content provided by their publishers in order to keep the archive alive and resonably current. Full texts are freely downloadable after a variable moving wall." -- Numdam website
PapersFirst is an index to scholarly papers presented at conferences, symposia, workshops, and other professional meetings from October 1993 to the present. It covers only those papers received by the British Library Document Supply Center. (NOTE: Search ProceedingsFirst to locate information on the meetings at which these papers were presented.)
ProceedingsFirst is an index to the publications of professional meetings, such as conferences, workshops, and symposia, held since October of 1993. It covers only publications received by the British Library Document Supply Center. (NOTE: Search PapersFirst to locate information on the individual papers presented at these meetings.)
"Google Patent Search covers the entire collection of issued patents and millions of patent application made available by the USPTO—from patents issued in the 1790s through those most recently issued in the past few months. We don't currently include international patents, but we look forward to expanding our coverage in the future." -- Google
"This database lets you access 91 years of [Canadian] patent descriptions and images. You can search, retrieve and study more than 2,080,000 patent documents. The text of the abstracts and claims is not available for patents that were granted prior to August 15, 1978. These patents can only be searched by their patent number, titles, owner or inventor names, or classification." -- from website
"Espacenet offers free access to more than 90 million patent documents worldwide, containing information about inventions and technical developments from 1836 to today. It has a user-friendly interface available in almost all European languages. It enables users with little or no experience in patent searching to obtain an overview of the state of the art, to follow new developments or to find out who invented what." - European Patent Office
The purpose of the American Mathematical Society (AMS) is "to further the interests of mathematical research, scholarship and education, serving the national and international community through publications, meetings, advocacy and other programs."
"The purpose of the Association for Women in Mathematics is to encourage women and girls to study and to have active careers in the mathematical sciences, and to promote equal opportunity and the equal treatment of women and girls in the mathematical sciences."
"The Mathematical Association of America is the largest professional society that focuses on mathematics accessible at the undergraduate level. . . . The mission of the MAA is 'to advance the mathematical sciences, especially at the collegiate level.'"
The National Association of Mathematicians (NAM) is a non-profit professional organization in the mathematical sciences with membership open to all persons interested in the mission and purpose of NAM which are: 1) promoting excellence in the mathematical sciences and 2) promoting the mathematical development of all underrepresented minorities.
"SIAM exists to ensure the strongest interactions between mathematics and other scientific and technological communities through membership activities, publication of journals and books, and conferences."