This article is from the Go FAQ, by Morten PAHLE email@example.com with numerous contributions by others.
There are several ways to have your games commented.
In real life, you will need to have a record of your game or be able
to replay it by memory. Ask a stronger player if he can help you, and
have him comment the game as you replay it. Unless they are otherwise
engaged, most stronger players will be happy to help.
On the internet, you should set up your server so that you
automatically receive a record of every game you play.
With this record, you can either have it reviewed by a friendly
stronger player you know from the server, or use the Go teaching
ladder. (See below.)