Where can I go to promote an Idea?

I have an Idea about weight loss and am looking for a website where I can promote it or if anybody know where I can get help because I don't have money to promote it myself and am willing to promote the idea.
...............................................................................
Wonder you have a nice idea. I will suggest you to promote this idea on www.ehow.com and www.wikihow.com. They offer any body to promote their idea free of charge. Infact if you promote it on ehow.com you will get paid when someone click on your content published on ehow.com. So you decide where you would like to promote your idea.
...............................................................................
i suggest join youtube post a video about it and you'll get many users
...............................................................................
WORK FROM HOME
at
http://hiranmoybarik.blogspot.com/