better to get your site promoted thru influencers (who have huge reach on social media) listed at fromote (search google for exact we address)
I have seen you promoting your product many time today, as on this post: http://www.blackhatworld.com/blackhat-seo/facebook/736936-get-advertisers-your-facebook-page.html To ivarnycolaas yes it's always a good way because you can choose the demographics, the age, the interest of your audiance. But you have to try if your product sell well, if your site convert, do A/B test, etc... It can cost you a lot of money
