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The Guide to Grammar and Writing contains scores of digital handouts on grammar and English usage, over 170 computer-graded quizzes, recommendations on writing -- from basic problems in subject-verb agreement and the use of articles to exercises in p...

The Physics Classroom is an online interactive tutorial of basic physics concepts. The lessons use an easy-to-understand language to present common physics principles discussed in a first-year high school physics course.

Learn how to do just about everything at eHow. Expert Village is now a part of eHow, adding expert How To videos to eHow, the world

International führender Wissenschaftsverlag - Wissenschaft, Technik, Medizin, Architektur, Wirtschaft und Verkehr - Zeitschriften, Bücher und EContent.

Internet Archive is a non-profit digital library offering free universal access to books, movies & music, as well as 150 billion archived web pages.

BusinessDictionary.com. Easy-to-use free business glossary with over 20,000 terms. Concise, clear, and comprehensive.

Online Dictionary - Multiple dictionaries including: English dictionary, medical dictionary, legal dictionary, financial dictionary, computer dictionary, thesaurus, dictionary of acronyms and abbreviations, dictionary of idioms, thesaurus, Columbia e...

Free online resource of English test vocabulary, including TOEFL, IELTS, GRE, and SAT. This site offers word lists, test tools, practice materials, and exam news for vocabulary builders. It is a great helper for both students and tutors in test prepa...