Forums are simple to understand and easy to use and that is one of the reason of their popularity. You don't need to be geek, to post your thought in forum. Anyone who can manage to connect to the internet, open a browser and type a URL will find it easy to click on a link to a forum, register and post their thoughts.

It's a simplest way for like-minded people with common interest, to come together to share their thoughts and opinions in true online style, without having to take the trouble to actually meet anyone. The best example I can give is if suppose you have a technical query and you find a technical forum. Exactly what you need to do is; first, try to find similar cases from the search facility provided in the forum. If you are not successful getting any such post then post a new thread with the issue you are facing. The forum is going to be viewed by many people and you will get different solutions from different people. In future, if someone else is facing the same problem, he will also try to search and get your post, so he would get solutions in just few minutes. It is exactly like storing and sharing the knowledge of many individuals among a group.

The forums are even good to promote your site in search engines as well as attract more visitors to your site.