Use the internet

Here is the Ultimate list of websites which will change your life and give you a whole new reason to use internet:-

1. Openculture.com - This is the big daddy of internet when it comes to knowledge and learning new things. The best free cultural & educational media on the web

link : Open Culture - The Best Free Cultural and Educational Media on the Web. 

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2. Instructables.com - Instructables is a huge community of do-it-yourselfers who actively engage in creating and sharing well-illustrated, step-by-step how-to articles on everything from building robots to repairing torn clothing to creating 3D anamorphic sidewalk art (really).

link :- http://instructables.com 

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3. Creative-writing-now.com - Learn how to write stories, poems, novels with the free online writing courses.

link: http://creative-writing-now.com

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4. 30 Second MBA -  Watch 30 second videos and get tips from business leaders.

link : 30-Second MBA

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5. Common errors in English -  Want to know the difference between effect and affect? How to correctly use the word alot? (hint - there is no word alot) I can, and often have, spent hours at this site. It's educational. It's hilarious!

link: Common Errors in English Usage 

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6. Duolingo.com - Learn Spanish, French, German, Portuguese, Italian and English for free 

link: Learn Spanish, French, German, Portuguese, Italian and English for free 

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7. Khanacademy.org - "Our mission is to provide a free, world-class education for anyone, anywhere. All of our resources are completely free forever, regardless of whether you're a student, teacher, home-schooler, principal, adult returning to the classroom after 20 years, or a friendly alien just trying to get a leg up in earthly biology." - Khan Academy

link: Khan Academy 

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8. Bigthink.com – Big Think is an evolving roadmap to the best thinking on the planet — the ideas that can help you think flexibly and act decisively in a multivariate world.

link: Blogs, Articles and Videos from the World's Top Thinkers and Leaders | Big Think 

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9. Mathrun.net - Daily brain training - A six pack for your brain.

link: how fast are your Math skills? A simple Math Training Game for everyone 

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10. Academicearth.org - A comprehensive collection of free online courses from the world's top universities.

link: Academic Earth - A world-class education at your fingertips

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11. Youtube Channels -

• SciShow - SciShow discusses science news, history and concepts.
  With equal parts skepticism and enthusiasm, we go a little deeper...without going off the deep end.
  
• Vsauce - Our World is Amazing. Subscribe for Mind-Blowing Facts & The Best of the Internet

• MinutePhysics - Simply put: cool physics and other sweet science.

• TEDEducation - TED-Ed's Original videos aim to capture and amplify the voices of the world's greatest educators.

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12. Drawspace.com - Everyone can learn to draw Exercise your brain, creativity, and visual intelligence.

    

  

link: Now everyone can draw 

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13. Degreed.com -The new degree for the new world. Students and professionals use Degreed to quantify and organize their lifelong education, from any source—formal (e.g. Harvard) and informal (e.g. Skillshare.com). Then students use their education to unlock relevant, tailored employment and learning opportunities.

link: Degreed.com | The Digital Lifelong Diploma

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14. Flylady.net - It is like having a great friend who is with you all the time, who keeps tabs on all your activities and events. A solid website that can help you organize your life!


link: FlyLady.net 

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15. Climbur.com - Climbur is a weekly email that provides actionable insights and big ideas from top innovators to help entrepreneurs everywhere be more successful.

link:  CLIMBUR - Entrepreneurial Intelligence

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16. Getthefive.com -  For those who lean on their right brain. Startups, ideas, business, creativity, views, marketing, all at one place.

link: startups—FIVE THOT discover ideas, people, views, lifestyles and business

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17. Power searching with Google - Attend the self-paced training on Power Searching with Google and learn cool ways to structure your search queries and get back exact and relevant answers.

link: Inside Search


Disclaimer: This article is originally from one of the Quora's answer : http://www.quora.com/Intelligence/What-are-the-most-productive-ways-to-spend-time-on-internet