List of best websites of engineering that students must should know

Here is the list of websites :

1. NPTEL
2. IEEE
3. DIY How To Make Instructions
4. https://www.quora.com/
5. Download free eBooks at Download free eBooks at bookboon.com
6. Download NCERT Text Books and CBSE Books
7. Read Hindi, Gujarati and Tamil Stories, Poems and Books
8. http://yourstory.com/
9. eChai Ventures — gSchool — A School of doing good things
10. Calculate Website Traffic Worth, Revenue and Pageviews with SiteWorthTraffic
11. Freelancer - Hire & Find Jobs
12. Internships in India | Internshala
13. http://www.twenty19.com/
14. http://electronicsforu.com/
15. Build Electronic Circuits - Electronics explained in a simple way
16. Technology, Engineering, and Science News
17. IEEE Xplore Digital Library
18. INDIAN SOCIETY FOR TECHNICAL Education
19. Tech News, Reviews, Latest Gadgets & Technology News, Mobile, Tablet, Laptop, Gaming, Tech, Photos, Videos: NDTV Gadgets360.com
20. http://www.cnet.com/
21. https://www.arduino.cc/
22. https://www.raspberrypi.org/
23. https://www.blogger.com
24. https://wordpress.com/
25. https://www.ted.com/
26. https://github.com/
27. http://www.w3schools.com/
28. http://www.iitb.ac.in/
29. http://www.iitd.ac.in/
30. http://www.iitr.ac.in/
31. http://www.iitk.ac.in/
32. http://www.iitkgp.ac.in/
33. https://www.iitm.ac.in/
34. http://www.iitg.ac.in/
35. http://www.bits-pilani.ac.in/
36. http://www.iith.ac.in/
37. http://www.nsit.ac.in/
38. http://www.bhu.ac.in/
39. http://www.svnit.ac.in/
40. http://www.alexa.com/
41. ​https://techcrunch.com
42. http://www.howstuffworks.com/
43. https://www.sciencedaily.com/
44. http://www.arvindguptatohttps://www.mygov.in/ys.com/
45. http://dst.gov.in/#
46. https://www.nobelprize.org
47. http://www.sciencefairadventure....
48. http://www.learncreateyourself.com/
49. http://www.famous-india.com/peop..
50. Khan Academy

 51. http://www.Duolingo.com/

 52. Pinterest

 53. My Learning Notes

 54. Information & Inspiration for Engineers

 55. Science News, Articles, and Information

 56. http://www.popularmechanics.com/

 57. The latest in science and technology news, blogs and articles

 58. http://www.nationalgeographics.com/

Here I am not writing some most common websites like Facebook, Wikipedia etc. You should also consider such most helpful websites