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A a free, multilingual encyclopedia project supported by the non-profit Wikimedia Foundation. Its articles have been written collaboratively by volunteers around the world, and almost all of them can be edited by anyone who can access the Wikipedia website.
Updated online encyclopedia from the well-known Encyclopaedia Britannica, with articles, biographies, videos, images, and web sites.
Free online dictionary and audio pronunciation. Instantly looks for accurate and exhaustive definitions from trusted sources.
Offers a free online dictionary, thesaurus, medical dictionaries, audio pronunciations, word games, and many more high-quality Merriam-Webster language resources.
Free, online multilingual dictionary which integrates and coordinates various similar sites from local Wikipedias.
Provides an interactive atlas of the world. Images can be scaled, searched, seen as from the satellite; informations can be extracted after search (addresses, distances and/or paths between destinations, services and shops in the neighborhood of a point). Street view available.
Provides meaning, pronunciation and use for terms and words in the field of computer science; indexed both alphabetically and by category. Offers job opportunities and technical support.
A map of the wheel-ruts of modern English; dates and historical periods are provided for the first written record of every word listed. Informations taken from well-known and trusted sources.
Allows to look for a particular document in pdf format inside a vast collection of indexed links - and to read and/or download it. Multilingual support is provided in order to make the navigation easier.
Free, online dictionary with emphasis on synonymic and antonymic words. Each entry is fully defined in a separate section.
Offers informations about the United States' oldest federal cultural institution, which serves as the research arm of Congress; the largest library in the world, with more than 120 million items. Podcast, newsletter and RSS available. With links to the complete catalogue, news, scheduled events, resources for readers and professionals as teachers, librarians, publishers.
Offers a vast, complete and detailed movies, tv-shows and videogames indexed database including informations about cast members, production departments, media resources, trailers for upcoming titles and fun stuff as famous quotes, birthdays, fans' reviews. Pro-version available at request.
Provides a surfable database of topics concerning English grammar, orthography, syntax and style, and an easy-to-search A-Z list of common questions; very useful and effective in order to improve one's writing skills.
Presents a quick and useful crash course in English punctuation. Detailed yet friendly explainations about use and misuse of commas, colons, semi-colons, full stops and other signs. With an appendix on tips and warnings.
Provides an extensive electronic grammar course at the University of Ottawa’s Writing Centre. From basic matter to advanced topics, covers the entire field and presents some interestings insights on diction choice, clause building, paragraph construction, modifiers recognition.
Offers quick and dirty tips for better writing using a simple, friendly user interface - the Grammar Girl. Containing short, friendly advices about grammar rules and word choice, makes complex questions simple with memory tricks to help recalling and applying even the most troublesome rules.
Presents some chapters forma an E-books on writing skills, writing tips, writing newsletter and more. Offers short articles about ampersands, punctuation, character spacing, apostrophes, semicolons and commas, difference between i.e. and e.g.
Offers a compact resource with articles that cover abbreviations, capitalization, numbers and scientific notation, punctuation, word usage and writing styles.
Contains modules that go through the process of researching information and producing well structured and dynamic pieces of academic writing. Single articles available on formal academic writing, essays and reports, treating punctuation and using a thesaurus.
A brief yet precise guide based on the style book which is given to all journalists at The Economist; contains various hints on how to use metaphors, punctuation, figures, hyphens.
Provides an extensive guidance on grammar and style for technical writing. Debeats the use of numbers in sentences, common misuses of english words, bibliography building advices, verb tense and voice chioce.
Provides acces to a search form to be filled-in using various kind of input methods in order to simultaneously search major online Chinese dictionaries.
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