Dear all, Wish to studies, find your desired websites and solved your problems!!!

1. Linux: http://searchdatacenter.techtarget.com/tutorial/77-Linux-commands-and-ut...

2. Html: http://www.ebizmba.com/articles/best-html5-websites

3. VB.Net: http://www.vbi.org/Search/topsites.asp

4. VB.Net with C#: https://www.sitepoint.com/asp-dot-net-basics/

5. C++: https://hackr.io/tutorials/learn-c-plus-plus

6. C: https://www.quora.com/What-are-some-of-the-best-websites-to-learn-C-prog...

7. Java Script: https://ourcodeworld.com/articles/read/200/top-7-best-free-web-developme...

8. Oracle: https://www.quora.com/What-are-the-best-sites-to-learn-Oracle-SQL-and-PL...

9. Network: https://www.ccri.edu/engt/website_network.html

10. CISCO related: https://www.networkworld.com/article/2350875/cisco-subnet/20-useful-site...

https://www.quora.com/What-are-the-best-online-CCNA-CCNP-courses

11. Software Engineering: https://techbeacon.com/top-12-international-cities-software-engineers

|-------------------------------->>

The best free Websites for research:

1. ieeexplore.ieee.org
2. acm.org
3. link.springer.com
4. wiley.com
5. sciencedirect.com
6. acs.org
7. aiaa.org
8. aip.org
9. ajpe.org
10. aps.org
11. ascelibrary.org
12. asm.org
13. asme.org
14. bioone.org
15. birpublications.org
16. bmj.com
18. emeraldinsight.com
19. geoscienceworld.org
20. icevirtuallibrary.com
21. informahealthcare.com
22. informs.org
23. ingentaconnect.com
24. iop.org
25. jamanetwork.com
26. joponline.org
27. jstor.org
28. mitpressjournals.org
29. nature.com
30. nrcresearchpress.com
31. oxfordjournals.org
32. royalsocietypublishing.org
33. rsc.org
34. rubberchemtechnol.org
35. sagepub.com
36. scientific.net
37. spiedigitallibrary.org
38. springermaterials.com
39. tandfonline.com
40. theiet.org

|------------------------------->>

The best  free Websites for digital libraries:
www.ketabnak.com
www.urbanity.ir

www.98ia.com

www.takbook.com

www.irpdf.com

www.parsbook.org

www.irebooks.com

www.farsibooks.ir

www.ketabesabz.com

www.readbook.ir 
www.digitallibraryplus.com

www.daneshyar.net

For Monographs:

http://www.dart-europe.eu/basic-search.phpwww.umi.com/pqdauto

www.search.ebscohost.com

www.sciencedirect.com

www.emeraldinsight.com

www.online.sagepub.com

www.springerlink.com

www.scopus.com

http://apps.isiknowledge.com

www.anjoman.urbanity.ir

Persian articles:

www.urbanity.ir

www.umi.com/pgdauto

www.mhrn.net

www.theses.org 
www.urbanity.ir

USA, UK and Iran libraries:

www.shahrsaz.ir

www.magiran.com

www.civilica.com

www.sid.ir 
www.nlai.ir
www.loc.gov
www.bl.uk

------------------------->>

for Psychiatrist:
http://eric.ed.gov

For Countries Social science:

www.worldatlas.com

Articles:

www.infolibrarian.com

http://digitool.library.mcgill.ca/R

http://highwire.stanford.edu/

Proceeding of the National Academy of Science:
http://www.pnas.o
​​
In 1998 article archive:

www.findarticles.com

Digital Libraries:

www.digital.library.upenn.edu/books

Wikipedia:

 www.wikipedia.org

California Universities Articles:
http://escholarship.org/

http://www.lib.utk.edu:90/cgi-perl/dbBro...i?help=148

http://www.oalib.com/

http://etheses.nottingham.ac.uk/

for Websites:

http://www.intechopen.com/