Q:

What's the difference between Programmers and Stack Overflow? 

What's the difference between Programmers and Stack Overflow? 

A:

From Introducing Programmers.StackExchange.com:

In a nutshell, Stack Overflow is for when you’re front of your compiler or editor working through code issues.  Programmers is for when you’re in front of a whiteboard working through higher level conceptual programming issues. 
Stated another way, Stack Overflow questions almost all have actual source code in the questions or answers.  It’s much rarer (though certainly OK) for a Programmers question to contain source code. 

Additional Resources:

Programmers. SE FAQ
Stack Overflow FAQ
Good Subjective, Bad Subjective
The Six Subjective Question Guidelines — Enforcement Notice
Real Questions Have Answers

A:

One might think that:

"... Stack Overflow is for when you’re front of your compiler or editor working through code issues.  Programmers is for when you’re in front of a whiteboard working through higher level conceptual programming issues..."

but this is only a nice theory, in practice this site is a redundancy, any question that I thought to ask here I could ask on Stack Overflow.  The real "white board" questions are not welcome here as they are too broad and usually get downvoted and closed.