Back in 2010, weshared with you 100 awesome search engines and research resources in ourpost: 100 Time-SavingSearch Engines for Serious Scholars. It’s been an incredibleresource, but now, it’s time for an update. Some services have moved on, othershave been created, and we’ve found some new discoveries, too. Many of ouroriginal 100 are still going strong, but we’ve updated where necessary andadded some of our new favorites, too. Check out our new, up-to-date collectionto discover the very best search engine for finding the academic results you’relooking for.
Need to get startedwith a more broad search? These academic search engines are great resources.
1. iSEEK Education:iSeek is an excellent targeted search engine,designed especially for students, teachers, administrators, and caregivers.Find authoritative, intelligent, and time-saving resources in a safe,editor-reviewed environment with iSEEK.
2. RefSeek:With more than 1 billion documents, web pages, books, journals,newspapers, and more, RefSeek offers authoritative resources in just about anysubject, without all of the mess of sponsored links and commercial results.
3. Virtual LRC:The Virtual Learning Resources Center hascreated a custom Google search, featuring only the best of academic informationwebsites. This search is curated by teachers and library professionals aroundthe world to share great resources for academic projects.
4. Academic Index:This scholarly search engine and webdirectory was created just for college students. The websites in this index areselected by librarians, teachers, and educational consortia. Be sure to checkout their research guides for history, health, criminal justice, and more.
5. BUBL LINK:If you love the Dewey Decimal system, this Internet resourcecatalog is a great resource. Search using your own keywords, or browse subjectareas with Dewey subject menus.
6. Digital Library of the Commons Repository:Check out the DLC to find internationalliterature including free and open access full-text articles, papers, anddissertations.
7. OAIster:Search the OAIster database to find millions of digitalresources from thousands of contributors, especially open access resources.
8. Internet Public Library:Find resources by subject through theInternet Public Library’s database.
9. Infomine:The Infomine is an incredible tool for finding scholarlyInternet resource collections, especially in the sciences.
10. Microsoft Academic Search:Microsoft’s academic search engine offersaccess to more than 38 million different publications, with features includingmaps, graphing, trends, and paths that show how authors are connected.
11. Google Correlate:Google’s super cool search tool will allowyou to find searches that correlate with real-world data.
12. Wolfram|Alpha:Using expert-level knowledge, this searchengine doesn’t just find links; it answers questions, does analysis, andgenerates reports.
Want the best ofeverything? Use these meta search engines that return results from multiplesites all at once.
13. Dogpile:Find the best of all the major search engineswith Dogpile, an engine that returns results from Google, Yahoo!, and Bing,with categories including Web, Images, Video, and even White Pages.
14. MetaCrawler:MetaCrawler makes it easy to “search thesearch engines,” returning results from Google, Yahoo!, and Bing.
15. Mamma:Check out the mother of all search engines to pin down the bestresources on the web. Mamma even searches Twitter and job postings!
Databases and Archives
Resources like theLibrary of Congress have considerable archives and documents available, andmany of them have taken their collections online. Use these search tools to getaccess to these incredible resources.
16. Library of Congress:In this incredible library, you’ll get accessto searchable source documents, historical photos, and amazing digitalcollections.
17. Archives Hub:Find the best of what Britain has to offer inthe Archives Hub. You’ll be able to search archives from almost 200institutions from England, Scotland, and Wales.
18. National Archives:Check out this resource for access to theNational Archives. Find online, public access to find historic documents,research, government information, and more in a single search.
19. arXiv e-Print Archive:Cornell University’s arXiv.org offers openaccess to a wealth of e-prints in math, science, and related subjects. Searchthis resource to find what you need among 756,133 documents and counting.
20. Archivenet:An initiative of the Historical CentreOverijssel, Archivenet makes it easy to find Dutch archives and more.
21. NASA HistoricalArchive:Explore the historyof space in this historical archive from NASA, highlighting space history andmanned missions.
22. National Agricultural Library:A service of the U.S. Department ofAgriculture, you can find global information for agriculture in the NationalAgricultural Library.
23. Smithsonian Institution Research Information System:Get access to the considerable resources ofthe Smithsonian Institution through the Research Information System, a greatway to search more than 7.4 million records from the Smithsonian’s museums,archives, and libraries.
24. The British Library Catalogues &Collections:Explorethe British Library catalogues, printed materials, digital collections, andeven collection blogs for a wealth of resources.
25. CIA WorldFactbook:As the center ofintelligence, the CIA has certainly done its job with The World Factbook,offering information on major reference information around the world. History,people, government, economy, and more are all covered in this onlinepublication.
26. StateLegislative Websites Directory:Use this database to find information from the legislatures ofall 50 U.S. states, DC, and the Territories. You can look up bills, statutes,legislators, and more with this excellent tool.
27. OpenDOAR:In the Directory of Open Access Repositories,you can search through freely academic research information with more directlyuseful resources.
28. Catalog of U.S. GovernmentPublications:Searchthrough the Catalog of U.S. Government Publications to find descriptive recordsfor historical and current publications, with direct links where available.
Books & Journals
Instead of heading tothe library to bury your face in the stacks, use these search engines to findout which libraries have the books you need, and maybe even find them availableonline.
19. WorldCat:Find items from 10,000 libraries worldwide,with books, DVDs, CDs, and articles up for grabs. You can even find yourclosest library with WorldCat’s tools.
20. Google Books:Supercharge your research by searching thisindex of the world’s books. You’ll find millions for free and others you canpreview to find out if they’re what you’re looking for.
21. Scirus:For scientific information only, Scirus is a comprehensiveresearch tool with more than 460 million scientific items including journalcontent, courseware, patents, educational websites, and more.
22. HighBeam Research:Research articles and published sources withHighBeam Research’s tools. You’ll not only be able to search for what you’relooking for, you can also choose from featured research topics and articles.Note: HighBeam is a paid service.
23. Vadlo:Vadlo is a life sciences search engine offering protocols,tools, and powerpoints for scientific research and discovery. Find what you’relooking for, and then stick around to check out the forums.
24. Open Library:Find the world’s classic literature, open e-books, and otherexcellent open and free resources in the Open Library. You can even contributeto the library with information, corrections to the catalog, and curated lists.
25. Online Journals Search Engine:In this free, powerful scientific searchengine, you can discover journals, articles, research reports, and books inscientific publications.
26. Google Scholar:Check out Google Scholar to find onlyscholarly resources on Google. The search specializes in articles, patents, andlegal documents, and even has a resource for gathering your citations.
27. Bioline International:Search Bioline International to get connectedwith a variety of scientific journals. The search is managed by scientists andlibrarians as a collaborative initiative between Bioline Toronto and and theReference Center on Environmental Information.
28. SpringerLink:Search through SpringerLink for electronicjournals, protocols, and books in just about every subject possible. You canalso browse publications by collection and content type.
29. Directory of Open Access Journals:When you need top-quality journal writingsfor free, the Directory of Open Access Journals is a great place to check out.You’ll get access to a searchable journal of full-text quality controlled scientificand scholarly journals.
30. Jurn:In this curated academic search engine, you’ll get results fromover 4,000 free scholarly e-journals in the arts and humanities.
With a focus onscience, these academic search engines return all-science, all the time.
41. SciSeek:In this science search engine and directory,you’ll find the best of what the science web has to offer. Browse by category,search by keyword, and even add new sites to the listings.
42. Chem BioFinder:Register with PerkinElmer to check out theChem BioFinder and look up information about chemicals, including theirproperties and reactions.
43. Biology Browser:Biology Browser is a great resource forfinding research, resources, and information in the field of biology. You canalso check out their Zoological Record and BIOSIS Previews.
44. Athenus:Athenus is an authority on science and engineering on the Web,sharing a directory and full-featured web search.
45. SciCentral:Use SciCentral as your gateway to the bestsources in science. This site has a literature search, journals, databases, andother great tools for finding what you need.
46. Strategian:Strategian is a great place to find qualityinformation in all fields of science. Featured resources include free full-textbooks, patents, and reports, as well as full-text journal and magazinearticles, plus a special collection of Vintage Biology with important articlesand books in biology.
47. Science.gov:In this government science portal, you can search more than 50databases and 2,100 selected websites from 12 federal agencies. This is anincredible resource for millions of pages of U.S. government scienceinformation.
48. CERN Document Server:This organization for nuclear research servesup a great search and directory for experiments, archives, articles, books,presentations, and so much more within their documents.
49. Analytical Sciences Digital Library:Through the Analytical Sciences DigitalLibrary, you’ll find peer-reviewed, web-based educational resources inanalytical sciences, featuring a variety of formats for techniques andapplications.
50. WorldWideScience:Use WorldWideScience.org as a global sciencegateway, offering excellent search results in the sciences, and even the optionto select specific databases and find resources in your own language.
Math & Technology
Keep your resultslimited to only the best math and technology resources by using these searchengines.
51. MathGuide:Check out the MathGuide subject gateway tofind online information sources in mathematics. The catalog offers not just asearch, but a database of high quality Internet resources in math.
52. ZMATH Online Database:Zentralblatt MATH’s online database hasmillions of entries from thousands of serials and journals dating back as faras 1826. Nearly 35,000 items were added in 2012 alone.
53. Math WebSearch:This semantic search engine allows users tosearch with numbers and formulas instead of text.
54. Current Index toStatistics:In this bibliographicindex, you’ll find publications in statistics, probability, and related fields.There are more than 160 preferred journals, plus selected articles from 1,200more and 11,000 statistics books to draw from in this search.
55. Inspec:This database was made for scientists andengineers by the Institution of Engineering and Technology. You’ll find nearly13 million abstracts and research literature, primarily in the fields ofphysics and engineering.
56. CiteSeerX:Get searchable access to the ScientificResearch Digital Library by using the CiteSeerX website.
57. The Collection of Computer ScienceBibliographies:Findmore than 3 million references to journal articles, conference papers, andtechnical reports in computer science with this bibliography collection.
58. Citebase:Still in experimental demonstration, Citebase Search is aresource for searching abstracts in math, technology, and more.
Researchers working inthe fields of psychology, anthropology, and related subjects will find greatresults using these search engines.
59. Behavioral BrainScience Archive:Checkout this searchable archive to find extensive psychology and brain sciencearticles.
60. Social Science Research Network:In this research network, you can find a widevariety of social science research from a number of specialized networksincluding cognitive science, leadership, management, and social insurance.
61. Psycline:Find a journal with Psycline’s journal and article locator, atool that offers access to more than 2,000 psychology and social sciencejournals online.
62. Social SciencesCitation Index:The Thomson ReutersSocial Sciences Citation Index is a paid tool, but well worth its cost for thewealth of relevant articles, search tools, and thorough resources available.
63. Ethnologue:Search the languages of the world withEthnologue, offering an encyclopedic reference of all the world’s known livinglanguages. You’ll also be able to find more than 28,000 citations in theEthnologue’s language research bibliography.
64. SocioSite:Use this site from the University ofAmsterdam to browse sociological subjects including activism, culture, peace,and racism.
65. The SocioWeb:Check out this guide to find all of thesociological resources you’ll need on the internet. The SocioWeb offers linksto articles, essays, journals, blogs, and even a marketplace.
66. WikiArt:With this custom Google search engine, youcan find open access articles about archaeology.
67. Encyclopedia of Psychology:Search or browse the Encyclopedia ofPsychology to find basic information, and even translations for informationabout psychology careers, organizations, publications, people, and history.
68. Anthropology Review Database:Through this database, you can get access toanthropology reviews, look up publishers, and find resources available forreview.
69. Anthropological Index Online:This anthropological online search includesboth general search of 4,000 periodicals held in The British MuseumAnthropology Library as well as Royal Anthropological Institute films.
70. Political Information:Political Information is a search engine forpolitics, policy, and political news with more than 5,000 carefully selectedwebsites for political information.
Find awesome resourcesfor history through these search engines that index original documents,sources, and archives.
71. David RumseyHistorical Map Collection:Use the LUNA Browser to check out David Rumsey’s Map Collectionwith more than 30,000 images, searchable by keyword.
72. Genesis:Find excellent sources for women’s historywith the Genesis dataset and extensive list of web resources.
73. Fold3:Get access to historical military records through Fold3, theweb’s premier collection of original military records and memorials.
74. Internet Modern History Sourcebook:Use the Internet Modern History Sourcebook tofind thousands of sources in modern history. Browse and search to find fulltexts, multimedia, and more.
75. Library ofAnglo-American Culture and History:Use the history guide from the Library of Anglo-AmericanCulture and History for a subject catalog of recommended websites forhistorians, with about 11,000 to choose from.
76. HistoryBuff:History Buff offers an online newspaperarchive, reference library, and even a historical panoramas section in theirfree primary source material collection.
77. Digital History:University of Houston’s Digital Historydatabase offers a wealth of links to textbook, primary sources, and educationalmaterials in digital history. The database has multimedia, an interactivetimeline, active learning, and resources for teachers.
78. Internet AncientHistory Sourcebook:The Internet Ancient History Sourcebook is a great place tostudy human origins, with full text and search on topics including Mesopotamia,Rome, the Hellenistic world, Late Antiquity, and Christian origins.
79. History and Politics Out Loud:History and Politics Out Loud offers asearchable archive of important recordings through history, particularly politicallysignificant audio materials.
80. History Engine:In this tool for collaborative education andresearch, students can learn history by researching, writing, and publishing,creating a collection of historical articles in U.S. history that can besearched for here by scholars, teachers, and the general public.
81. American History Online:Through American History Online, you can findand use primary sources from historical digital collections.
Business and Economics
Using these searchengines, you’ll get access to business publications, journal articles, andmore.
82. BPubs:Search the Business Publications SearchEngine for access to business and trade publications in a tool that offers notjust excellent browsing, but a focused search as well.
83. Virtual Library Labour History:Maintained by the International Institute ofSocial History, Amsterdam, this library offers historians excellent content forlearning about economics, business, and more.
84. EconLit:Visit EconLit to access more than 120 yearsof economics literature from around the world in an easily searchable format.Find journal articles, books, book reviews, articles, working papers, anddissertations, as well as historic journal articles from 1886 to 1968.
85. National Bureau of Economic Research:On this site, you can learn about and findaccess to great resources in economic research.
86. Research Papers in Economics:Find research in economics and relatedsciences through the RePEc, a volunteer-maintained bibliographic database ofworking papers, articles, books, and even software components with more than1.2 million research pieces.
87. Corporate Information:Perfect for researching companies, CorporateInformation offers an easy way to find corporate financial records.
88. Inomics:Economists will enjoy this excellent site for finding economicsresources, including jobs, courses, and even conferences.
89. DailyStocks:Easily look up stocks with this search engineto monitor the stock market and your portfolio.
90. EDGAR Search:The SEC requires certain disclosures that canbe helpful to investors, and you can find them all here in this helpful,next-generation system for searching electronic investment documents.
Find even morespecialized information in these niche search engines.
91. PubMed:From the U.S. National Library of Medicine,PubMed is a great place to find full-text medical journal articles, with morethan 19 million available.
92. Lexis:Find reliable, authoritative information for legal search withthe Lexis site.
93. Circumpolar Health Bibliographic Database:Visit this database to find more than 6,300records relating to human health in the circumpolar region.
94. Education Resources Information Center:In the ERIC Collection, you’ll findbibliographic records of education literature, as well as a growing collectionof full-text resources.
95. MedlinePlus:A service of the U.S. National Library ofMedicine, Medline Plus offers a powerful search tool and even a dictionary forfinding trusted, carefully chosen health information.
96. Artcyclopedia:Search Artcyclopedia to find everything thereis to know about fine art, with 160,000 links, 9,000 artists listed, and 2,900art sites indexed.
Get connected withgreat reference material through these search tools.
97. Merriam-WebsterDictionary and Thesaurus:Use this online dictionary and thesaurus to quickly finddefinitions and synonyms.
98. References.net:Through References.net, you can get connectedwith just about every reference tool available, from patents to almanacs.
99. Quotes.net:Need the right thing to say? Check out Quotes.net to referencefamous words from famous people.
100. Literary Encyclopedia:Check out the Literary Encyclopedia to getaccess to reference materials in literature, history, and culture.