What are the best programming websites to learn from?

for micro soft technology like ASP.NET, C# goto www.asp.net and c-sharpcorner.com

It's W3School and really it's very useful

codecademy

code school

khan academy

scratch 2.0

Edx.com

W3school.com

Coursera.com

W3Schools

Tutorials poin 

Stackoverflow

For online courses >> Coursera, Edx, and Udacity. 

for questions and help >> https://stackoverflow.com/

or https://github.com/

For Asp.net, C# - W3School, C# Corner, Kunvenkat Youtube Vedios, stack overflow

I prefer microsoft technology so i like c#

for MOOCs, Coursera, Udacity, Udemy, Datacamp

for questions, stack overflow

for basics, W3C

Personally, I highly recommend Lynda.com.

The lessons there are provided by industry experts. Also, you can choose a learning path such as Become a Front-End Web Developer, Become a Ruby on Rails Developer, ... etc. 

check all that available paths on the following link: https://www.lynda.com/learning-paths/web

Also, I find W3schools and Tutorialspoint very useful and free. 

CodeAcademy

W3School it is very Useful for fresher and as well experience.

and important google software forums