Finds and summarises real research papers, with citations.
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Learning
30Courses, references, languages and study tools.
Top 5 free
Week of 7 September- 1
Code.orgNewly trackedNew - 2MMIT OpenCourseWareNewly trackedNew
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The Odin ProjectNewly trackedNew - 4AAnkiNewly trackedNew
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CS50Newly trackedNew
Top 5 paid
Week of 7 September
Answers questions using peer-reviewed findings only.
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Explains a dense paper paragraph by paragraph.
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A tutor built to guide rather than hand over the answer.
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$4/month
Speaking practice with feedback on your pronunciation.
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Free tier
Full-stack curriculum built from open resources.
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Free tierOpen source
Harvard's introduction to computer science, free.
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Free tier
UK university short courses, many free to audit.
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Search millions of open access research papers.
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A full school curriculum, free, no adverts.
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Actual MIT course materials, published free.
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University courses, auditable free in many cases.
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Peer-reviewed textbooks, free to download.
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Maths and science taught by doing, not watching.
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The best visual explanations of hard maths on the internet.
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Open textbooks anyone can improve.
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Free tier
Spaced repetition flashcards, the serious option.
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Free tierOpen source
Flashcards and study sets, easiest to start with.
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Daily language practice that people actually keep up.
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Vocabulary in real sentences, after the basics.
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Free tier
A huge open collection of translated example sentences.
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How a word is actually pronounced, by native speakers.
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Where a lot of programmers genuinely started.
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Free tierOpen sourceNo training on your data
Free computing lessons for schools and beginners.
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Free tier
A full curriculum, written by people, entirely free.
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The reference for how the web actually works.
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Practice problems in 70 odd languages with feedback from human mentors.
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