Mostly forum site are do follow and they are highly cashed in search engines so if we post on relevant forum site we can get back links and our sit ranking increase quickly.
According to me there are two major benefits of forum posting. One is to get best solutions of problem by experts without spending any penny. And another benefit is that generating backlinks for money sites using signature.
As a business formation lawyer. I follow a strong grassroots campaign of forum posting and it has helped tremendously.
Forum posting is great way to promote the services or product. Most of the internet marketer are using these strategies to get more visitor to the website. It helpful to get a good quality of backlink. These backlink helpful to get rank over search engine.