Message boards and forums are listed primarily by topic, and only general message boards and forums will be listed here. If you board/forum is focussed on a specific topic (such as Computers, cricket, sports cars, or a particular TV show) then please locate the best category for that topic and suggest the site there instead.
Suggesting inappropriate sites here will only delay their review and potential inclusion by editors
Message boards or discussion forums are usually the main aspect of an online (virtual) community where one can interact with other people of similar interests by posting and replying to messages, in your own time. This usually results in higher quality of discussions than with real-time chat.