Posting and answering questions you have already found the answer to
Sometimes I find I know a good method to do something (for example writing a clean and efficient function to convert rotations) or I know a good explanation of a concept that later could be useful for other users to understand how to program it, or how to study the concept (for example understanding quaternions).
If I think I know something that must be shared because it is going to be useful to many many people my quiestion is:
Which is the right place to share it? How do I share it (as a question-answer, as a wiki,...)?