This thread will contain a "recommend reading list" 

Books:

Reference Style - All Levels

The C++ Programming Language - Bjarne Stroustrup

C++ Standard Library Tutorial and Reference - Nicolai Josuttis

Introductory:

C++ Primer - Stanley Lipman / Josée Lajoie / Barbara E. Moo

Accelerated C++ - Andrew Koenig / Barbara Moo

Thinking in C++ - Bruce Eckel (2 volumes, 2nd is more about standard library, but still very good)

Best practices: Effective C++ - Scott Meyers

Effective STL - Scott Meyers

Intermediate:

More Effective C++ - Scott Meyers

Exceptional C++ - Herb Sutter

More Exceptional C++ - Herb Sutter

C++ Coding Standards: 101 Rules, Guidelines, and Best Practices - Herb Sutter / Andrei Alexandrescu

C++ Templates The Complete Guide - David Vandevoorde / Nicolai M. Josuttis

Large Scale C++ Software Design - John Lakos

Above Intermediate:

Modern C++ Design - Andrei Alexandrescu

C++ Template Metaprogramming - David Abrahams and Aleksey Gurtovoy

Inside the C++ Object Model - Stanley LippmanOnline information:Arranged in no particular order.

Const Correctness:

• http://www.parashift...s.html#faq-18.3


• http://www.possibili...const.htmlCasts


• http://stackoverflow...drvalue/lvalues


• http://stackoverflow...nd-i-in-cUseful snippets/ideas


• http://stackoverflow...-c-c-snippetFor Egaris - sizeof infos


• http://stackoverflow...ch-memberMemory leaks, are they ok?


• http://stackoverflow...leaks-ever-okIn short, if you cause a leak you better have a good goddamn mop.Singletons


• http://stackoverflow...ould-it-be-used


• http://stackoverflow...-or-a-crutchCPU Information


• http://stackoverflow...a-machineThings to ******* know!


• http://stackoverflow...ramming-in-cC++ Pitfalls


• http://stackoverflow...-should-i-avoid


• http://developer.kde...htmlMalloc/free or new/delete, what what???? - then read


• http://stackoverflow...and-malloc-free


• http://stackoverflow...alloc-vs-newYou can delete null!


• http://www.parashift...t.html#faq-16.8