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Stack Overflow

    Stack overflow is the flagship site of the Stack Exchange Network created by two computer geniuses Jeff Atwood and Joel Spolsky. Stack Overflow is a free programming Q&A site full of professional and enthusiast programmers. Programmers ask questions, give answers, and collaborate on a wide variety of technical issues. It is basically a knowledge markets …

Khan Academy

What is Khan Academy?  Khan academy is a free, world class online educational website.  It is a non profit learning initiative created by Salman Khan in 2006. It offers educational videos and tutorials on a wide range of subjects. Users can watch any video or practice any skill at any time when using the site. …

Duolingo     

What is Duolingo? Duolingo is a wonderful free language app that makes the process of learning new languages amazingly fun. Duolingo offers extensive language courses majorly for English speakers.  It is also a crowd sourced text translation platform. It helps users to translate websites and other documents into various languages.  The app currently teaches Spanish, French, Italian, German, French, …