Google Scholar provides a simple way to broadly search for scholarly literature. From one place, you can search across many disciplines and sources: peer-reviewed papers, theses, books, abstracts and articles, from academic publishers, professional societies, preprint repositories, universities and other scholarly organizations. Google Scholar helps you identify the most relevant research across the world of scholarly research.
FirstGov for Science: gateway to authoritative selected science information provided by U.S. Government agencies including research and development results.
SCIRUS indexes, and returns results from, access-controlled sites that other search engines don't index as well as free resources. Over 300 million science-related web pages are currently covered. SCIRUS is a useful tool for identifying references in science (especially articles in Elsevier journals) and medicine (Pubmed links). It includes a web search engine designed for science-related results, hits organized by journal, preferred web sites, and other web results. It also allows for narrow searching by keywords found by SCIRUS.
Federated search of the digital libraries of the publications of science and technology societies with worldwide impact plus government documents; basic and advanced search simultaneously of all articles in digital libraries.
ADS is a NASA-funded project which maintains three bibliographic databases containing more than 5.0 million records: Astronomy and Astrophysics, Physics, and ArXiv e-prints. The citations and abstracts (when available) in the databases are astronomy/astrophysics-related. Query language found at HELP. Allows field searching. Access to full-text refereed articles depends on Brown University Library’s subscriptions.
Organizes and makes available virtually all information about life present on earth. Includes web sites- one for each of 1.8 million know species - that provide the entry points to this vast array of knowledge.
NCBI's Web site serves an an integrated, one-stop, genomic information infrastructure for biomedical researchers from around the world so that they may use these data in their research efforts.
The Advanced Search feature of the American Chemical Society website allows full-text search of the articles in journals of the Society; article are available for purchase.
For articles published, in general, after 2004, browse by title and issue or use Journal Search for full-text search of abstracts across all journals in the extensive list; does not include ACS or RSC titles.
Common Chemistry, a collaboration between Chemical Abstracts Service of the American Chemical Society and Wikipedia, is a resource helpful to non-chemists and others who know either a chemical name, including common names, or the unique identifier CAS Registry number (always in chemical catalogs). There are currently about 7800 chemical of general interest and all 118 elements of the periodic table
A collection of over 2 million references in over 1500 bibliographies. The listings are derived from bibliographies in scientific literature, primarily in computer science. More than 1 million references provide links to full text of article cited.
Including references, the Almanac provides numerical data about computers and computer science. It remains a useful tool, although not updated since 2005.
Digitial Bibliography and Library Project. Bibliographic information on "major computer science journals and conference proceedings." Papers are indexed but not stored so there is no full-text search; search with author, faceted dblp, or complete search forms; search by conferences, journals, books, subjects
NCSTRL is a federation of digital libraries providing computer sciences materials. With over 100 international participants, the reference library provides a searchable interface to the collection of digitized objects provided by the participating digital libraries.
For engineering, mathematics, and computing, find articles, eprints, books, best websites, technical reports and data, technical reports and data, resources on teaching and learning, dissertations and theses, the lastest news in industry, jobs, and research. TechXtra indexes parts of the Web that Google doesn’t, and helps you find subject-based information -- something Google doesn’t do very well. Many of the things you’ll find through TechXtra come from the ‘Hidden Web’, and are not indexed by Google; basic and advanced search forms; terms highlighted in full record.
Indexes “scholarly and general interest titles, as well as government documents and reports,” (offering) a unique perspective on the positive and negative ways humans affect the environment. Covers agriculture, education, law, health and technology.
the Hazardous Substance Release/Health Effects database of the Agency for Toxic Substances and Disease Registry, is a scientific and administrative compendium which provides searchable access to information on the release of hazardous substances from specific sites or events, as well as documentation of the effects of hazardous substances on the human health.
Jahrbuch is a digital library for classical mathematics on the World Wide Web, consisting of a complete electronic catalogue of the mathematical publications for the period from 1868 to 1942 (JFM database) along with a digital archive storing the most relevant publications from that period.
A searchable database of the most notable mathematics quotations about mathematics by both mathematicians, scientists, and authors, and other notable people throughout history.
A searchable database of over 200,000 documents in English on mathematics and statistics across the Web. The documents focus on research level and academic mathematics.
A registry of federally and privately supported clinical trials conducted in the United States and around the world, providing information about a trial's purpose, who may participate, locations, etc.
From the National Library of Medicine. Covers health topics, drug information, medical encyclopedia and dictionaries, referrals to libraries and organizations serving the public. Also provides access to PubMed and other databases.
1950–present; PubMed is a service of the U.S. National Library of Medicine that includes over 16 million citations from MEDLINE and other life science journals for biomedical articles back to the 1950s. PubMed includes links to full text articles and other related resources.
PubMed Central is a free digital archive of biomedical and life sciences journal literature at the U.S. National Institutes of Health (NIH), developed and managed by NIH's National Center for Biotechnology Information (NCBI) in the National Library of Medicine (NLM). With PubMed Central, NLM is taking the lead in preserving and maintaining unrestricted access to the electronic literature.
Current; the TRIP Database searches over 75 sites of high-quality medical information, providing you with direct, hyperlinked access to the largest collection of 'evidence-based' material on the web as well as articles from premier on-line journals such as the British Medical Journal, Journal of the American Medical Society (JAMA) and the New England Journal of Medicine.
Started in 1991 with HEP e-prints and expanded into the fields of physics, mathematics, non-linear science, computer science, and quantitative biology since 1991. Preprints and final versions. Query language found at HELP. Field searching. Citations and abstracts with full-text access to e-prints.
Journal hosting platform including American Institute of Physics and American Physical Society titles, among others. Query language found at HELP. Citations and abstracts (when available).