Some good online resources for C/C++ include:
    Useful STL Information
    Overall, the best C++ information
    Nice explanation of extensions to initialization in C++11

C++ language author's page (Bjarne Stroustrup)

The draft ANSI C++ standard. Hard to use, but authoritative: ANSI C++ standard
Current compilers may or may not implement all the requirements of this draft standard.

C++ on the Mac

Information on the textbook

Sixth Edition
    Carrano Text Errata
    Carrano Text Source Code

Seventh Edition
    Carrano Text Errata
    Carrano Text Source Code