I know you might heard of sites that pays you for posting. I think the best part is not getting paid,but these forums can get you some traffic. I have been a big fan of Mylot. It has been sending me some traffic. I am not participating discussions, because I want to make a buck. I am doing this to get some traffic to my blog.
I have been posting on another forum that is EWEALTH this is a great source of information for anyone who is trying to make some money online.
Unlike other forums, which pays you to post. Ewealth requires that you write 1500 post, before they payout. For 1500 post you get 200 USD. This is whole lot more than other pay-to-post sites.