Internet Public Library: Reference
http://www.ipl.org/div/subject/browse/ref00.00.00
All of the basic research tools such as dictionaries and encyclopedias that you expect to find in a library -- and more!

LibrarySpot.com
http://www.libraryspot.com/
LibrarySpot.com is a free virtual library resource center for educators and students, librarians and their patrons, families, businesses and just about anyone exploring the Web for valuable research information. Sites featured on LibrarySpot.com are hand-selected and reviewed by an editorial team for their exceptional quality, content and utility.

Librarians' Index to the Internet
http://lii.org/
Librarians' Index to the Internet (LII) is a searchable, annotated subject directory of more than 12,000 Internet resources selected and evaluated by librarians for their usefulness to users of public libraries. LII is used by both librarians and the general public as a reliable and efficient guide to Internet resources.

Yahoo! Reference
http://education.yahoo.com/reference/
Whether you're a student, a parent, or just plain curious, Yahoo! Reference offers a handy selection of books and materials to help you find the information you need. Look up a definition in the dictionary, find map and flag images for every country in the world in the World Factbook, get in-depth information from the encyclopedia, and much more. 

Merriam-Webster Online
http://www.m-w.com/
Merriam-Webster provides a free online dictionary, thesaurus, audio pronunciations, Word of the Day, word games, and other English language resources.

Dictionary.com
http://dictionary.reference.com/
This is a free online English dictionary, thesaurus and reference guide, crossword puzzles and other word games, online translator and Word of the Day.

American Heritage Dictionary 
http://www.bartleby.com/61/
Over 90,000 entries feature 10,000 new words and senses, 70,000 audio word pronunciations, 900 full-page color illustrations, language notes and word-root appendixes.

Yahoo! Directory Dictionaries > By Language
http://dir.yahoo.com/Reference/Dictionaries/Language/
Yahoo! Search Directory's listing of language dictionaries from Afrikaans to Yiddish.

RhymeZone
http://www.rhymezone.com/
A language arts reference tool and comprehensive search engine for words. Includes the functions of a rhyming dictionary, thesaurus, and spelling checker, as well as an integrated full-text search engine for all of Shakespeare's works and thousands of quotations and poems."

On-Line Medical Dictionary
http://cancerweb.ncl.ac.uk/omd/
OMD is a searchable dictionary created by Dr. Graham Dark and contains terms relating to biochemistry, cell biology, chemistry, medicine, molecular biology, physics, plant biology, radiobiology, science and technology. It includes: acronyms, jargon, theory, conventions, standards, institutions, projects, eponyms, history, in fact anything to do with medicine or science.

MedTerms Medical Dictionary
http://www.medterms.com/script/main/hp.asp
MedTerms online medical dictionary is the medical reference for MedicineNet.com, containing easy-to-understand explanations of over 10,000 medical terms. This online medical dictionary provides quick access to hard-to-spell medical definitions through an extensive alphabetical listing.

ArtLex Art Dictionary
http://www.artlex.com/
You'll find definitions for more than 3,500 terms used in discussing visual culture, along with thousands of supporting images, pronunciation notes, great quotations and cross-references.

SYMBOLS.com 
http://www.symbols.com/
SYMBOLS.com contains more than 2,500 Western signs, arranged into 54 groups according to their graphic characteristics. In 1,600 articles their histories, uses, and meanings are thoroughly discussed. The signs range from ideograms carved in mammoth teeth by Cro-Magnon men, to hobo signs and subway graffiti.

Webopedia
http://www.pcwebopedia.com/
An online computer dictionary and internet search engine for computer and Internet technology definitions.

Dictionary of Algorithms and Data Structures
http://www.nist.gov/dads/
This is a dictionary of algorithms, algorithmic techniques, data structures, archetypical problems, and related definitions. Algorithms include common functions, such as Ackermann's function. Problems include traveling salesman and Byzantine generals. Some entries have links to implementations and more information.

Biographical Dictionary
http://www.s9.com/biography/
This dictionary covers more than 28,000 notable men and women who have shaped our world from ancient times to the present day. The dictionary can be searched by birth years, death years, positions held, professions, literary and artistic works, achievements, and other keywords. 

Merriam-Webster Online
http://www.m-w.com/thesaurus.htm
Merriam-Webster provides a free online dictionary, thesaurus, audio pronunciations, Word of the Day, word games, and other English language resources.

Roget's II: The New Thesaurus, Third Edition
http://www.bartleby.com/62/
Containing 35,000 synonyms in an easy-to-use format, this thesaurus features succinct word definitions and an innovative hyperlinked category index by the Editors of the American Heritage� Dictionary. 

Roget’s International Thesaurus of English Words and Phrases
http://www.bartleby.com/110/
Mawson’s modernization of the classic structure becomes even more user-friendly on Bartleby.com with 85,000 hyperlinked cross-references. Additionally, over 2,200 quotations from classic and modern authors illustrate the 1,000-plus entries. 

CIA - The World Factbook
http://www.odci.gov/cia/publications/factbook/index.htm
The first classified Factbook was published in August 1962, and the first unclassified version was published in June 1971. The NIS program was terminated in 1973 except for the Factbook, map, and gazetteer components. The 1975 Factbook was the first to be made available to the public with sales through the US Government Printing Office (GPO). The Factbook was first made available on the Internet in June 1997. The year 2003 marks the 56th anniversary of the establishment of the Central Intelligence Agency and the 60th year of continuous basic intelligence support to the US Government by The World Factbook and its two predecessor programs.

Columbia Encyclopedia
http://www.bartleby.com/65/
Containing nearly 51,000 entries (marshalling six and one-half million words on a vast range of topics), and with more than 80,000 hypertext cross-references, the current Sixth Edition is among the most complete and up-to-date encyclopedias ever produced.

Encyclopedia.com
http://www.encyclopedia.com/
Encyclopedia.com, the Internet's premiere free encyclopedia, provides users with more than 57,000 frequently updated articles from the Columbia Encyclopedia, Sixth Edition. Each article is enhanced with links to newspaper and magazine articles as well as pictures and maps - all provided by eLibrary.

Wikipedia
http://en.wikipedia.org/wiki/Main_Page
Wikipedia is a free content wiki encyclopedia being written collaboratively by contributors from around the world. As of May 2004, there are 261003 articles in English; every day hundreds of thousands of visitors from around the world make tens of thousands of edits and create thousands of new articles. 

Google Scholar
http://scholar.google.com/
Google Scholar enables you to search specifically for scholarly literature, including peer-reviewed papers, theses, books, preprints, abstracts and technical reports from all broad areas of research. Use Google Scholar to find articles from a wide variety of academic publishers, professional societies, preprint repositories and universities, as well as scholarly articles available across the web.

MSN Encarta - Encyclopedia Article Center
http://encarta.msn.com/artcenter_0/Encyclopedia_Articles.html#tcsel
Search more than 4,500 articles on the world of knowledge--from aardvark to Zambia.

HighBeam Research
http://www.highbeam.com/library/index.asp?refid=elearners
Search this extensive archive of more than 32 million documents from 2,800 sources —  a vast collection of articles from leading publications, updated daily and going back as far as 20 years. Save your searches, save articles and set up alerts to save time and increase your efficiency. HighBeam Research offers both basic (free) and full membership options. 

Questia 
http://www.questia.com/
Questia is the first online library that provides 24/7 access to the world's largest online collection of books and journal articles in the humanities and social sciences, plus magazine and newspaper articles. You can search each and every word of all of the books and journal articles in the collection. You can read every title cover to cover. Questia requires a monthly, quarterly or yearly subscription.

Strunk, William, Jr. 1918. The Elements of Style
http://www.bartleby.com/141/index.html
Asserting that one must first know the rules to break them, this classic reference book is a must-have for any student and conscientious writer. Intended for use in which the practice of composition is combined with the study of literature, it gives in brief space the principal requirements of plain English style and concentrates attention on the rules of usage and principles of composition most commonly violated.

How to Cite/Format References for Research Papers
http://www.emich.edu/halle/style_guides.html
This website features a collection of links to websites that explain how to properly use American Psychological Association (APA) Style, Modern Language Association (MLA) Style, American Medical Association (AMA) Style, Chicago Manual of Style, and Turabian Style for writing research papers.

A Guide for Writing Research Papers Based on Modern Language Association (MLA) Documentation
http://webster.commnet.edu/mla/index.shtml
Recommendations here are based on the MLA Handbook for Writers of Research Papers. It is important to note, however, that individual instructors and institutions or departments may vary from these recommendations somewhat and that it is always wise to consult with your instructor before formatting and submitting your work.

Math.com
http://www.mathacademy.com/pr/prime/index.asp
Math.com is dedicated to providing revolutionary ways for students, parents, teachers, and everyone to learn math. Combining educationally sound principles with proprietary technology, Math.com offers a unique experience that quickly guides the user to the solutions they need and the products they want. 

Mathematics Help Central
http://www.mathematicshelpcentral.com/
Are you stumped on a math problem? Help is on the way! Mathematics is a challenging subject that mystifies many. Imagine the problem as a complicated puzzle that you must solve. All the pieces must fit in order for you to realize your success. This web site is devoted to helping you through your math worries! 

Professor Freedman's Math Help 
http://www.mathpower.com/
This site provides information about basic math, algebra, study skills, math anxiety and learning styles and specifically addresses the needs of the community college adult learner. A student who is frustrated by college math can be helped by identifying his individual learning style and recognizing the instructor's teaching style. This site provides links for students and teachers to information about learning styles,  study skills tips, and ways to reduce math anxiety and gives the students access to tutorials, algebra assignments, math videos, and a forum for discussing with the professor a variety of math topics.

S.O.S. MATH
http://www.sosmath.com/index.html
S.O.S. MATHematics is a free resource for math review material from Algebra to Differential Equations! Get help to do your homework, refresh your memory, prepare for a test. Browse more than 2,500 Math pages filled with short and easy-to-understand explanations - from simplifying fractions to the cubic formula, from the quadratic equation to Fourier series, from the sine function to systems of differential equations - this is the one stop site for your math needs. You can also check out CyberExams to prepare for a test, or ask a question on the popular CyberBoard! 

Webmath 
http://www.webmath.com/
Is is late at night? Stuck on math homework due tomorrow? Big exam coming up? Perhaps Webmath can help! This site is composed of many math "fill-in-forms" into which you can type the math problem you're working on. Linked to these forms is a powerful set of math-solvers, that can instantly analyze your problem, and when possible, provide you with a step-by-step solution, instantly!

Education World's Research Center
http://www.educationworld.com/research/
The Toolbox Section contains all sorts of handy useful links to great resources, like online dictionaries, language translators, encyclopedias, maps, conversion engines, and more!

Fact Monster
http://www.factmonster.com/
Fact Monster is an ideal reference site for kids ages 8-14 that provides entertainment and educational resources. It combines the contents of an encyclopedia, a dictionary, an atlas, and several almanacs loaded with statistics, facts, and historical records. A single search engine allows you to search all these sources at once. 

HomeworkSpot
http://www.homeworkspot.com/
HomeworkSpot.com is a free homework information portal that features the very best K-12 homework-related sites together with engaging editorial in one high-utility, educational spot. With the help of students, parents and teachers, HomeworkSpot's team of educators, librarians and journalists has scoured the Web to bring you the best resources for English, math, science, history, art, music, technology, foreign language, college prep, health, life skills, extracurricular activities and much more.

World Almanac for Kids
http://www.worldalmanacforkids.com/explore/index.html
Cool facts from the publishers of the World Almanac and Book of Facts for kids about animals, the environment, birthdays of famous people, inventions, countries of the world, population, U.S. Presidents, world religions, space, sports, the 50 U.S. states, and a timeline of U.S. history.

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