cppreference

LearnCpp

Cplusplus

TutorialsPoint

Techmeme

Awesome C++

Planetsourcecode

Daniweb

cprogramming

Techcrunch

Codecogs

Codeproject

Thefreecountry

cplusplus

CIS

Moshier

Thoughtco

Mathtools

Programmerworld

Josuttis

Toolbox

Java2s