Google C++ Style Guide 

谷歌C++编码规范

https://google-styleguide.googlecode.com/svn/trunk/cppguide.html

LearnCpp.com

初学者适用

http://www.learncpp.com/

中等熟练者快速查询

http://www.cplusplus.com/

http://www.cplusplus.com/reference/

Boost

http://www.boost.org/doc/

ACE

http://www.dre.vanderbilt.edu/~schmidt/ACE.html

我常用的C++网址