**Including link to meta.MO post with site recommendations**

> MathOverflow is a question and answer site for professional mathematicians. There are [other websites](https://meta.mathoverflow.net/q/3760) which are suitable for general mathematical questions. (Before asking on any of them, make sure that you read the rules of that site.)

`MathOverflow is a question and answer site for professional mathematicians. There are [other websites](https://meta.mathoverflow.net/q/3760) which are suitable for general mathematical questions. (Before asking on any of them, make sure that you read the rules of that site.)`

An advantage is that the linked post might be updated whenever needed.