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wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the wikimedia foundation.

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instructure's educational software includes canvas lms, used by schools and universities worldwide. learn why instructure is a great place to work and to invest in.

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udemy is an online learning and teaching marketplace with over 130,000 courses and 35 million students. learn programming, marketing, data science and more.

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join coursera for free and learn online. build skills with courses from top universities like yale, michigan, stanford, and leading companies like google and ibm. advance your career with degrees, certificates, specializations, & moocs in data science, computer science, business, and dozens of other topics.

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reverso.net : freeonline translation in french, spanish, italian, german, russian, portuguese, hebrew, japanese, english.

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sciencedirect is the world

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a computer science portal for geeks. it contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview questions.

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live world statistics on population, government and economics, society and media, environment, food, water, energy and health. interesting statistics with world population clock, forest loss this year, carbon dioxide co2 emission, world hunger data, energy consumed, and a lot more

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find and read more books you’ll love, and keep track of the books you want to read. be part of the world’s largest community of book lovers on goodreads.