- CppReference
- C++ Core Guidelines
- Microsoft GSL C++ (Guidelines Support Library)
- News from the C++ Standardization Committee
- C++ Online Compiler Explorer
- C++ Insights - See your code with the compiler's eyes: shows how the compiler transforms templates, lambdas, range-based loops, etc.
- r/cpp - The C++ community on Reddit: news, articles, and discussions.
- Learncpp.com - It is a free website devoted to teaching you how to program in C++. It's being updated regularly.
- Hackingcpp.com - The all-in-one web portal with different collections of materials related to C++: books, cheat sheets, recordings from conferences, etc.
- Awesomecpp.com - A curated collection of C++ resources.
- Cpp Con (back to basics)
- C++ Weekly - Jason Turner's YouTube show with short weekly episodes about C++ features and best practices.
- CppCast - A podcast for C++ developers with interviews about the language, libraries, and community.
- A cheatsheet of modern C++ language and library features
- Collection of libraries and frameworks for C++