Website Product Marketing

We have a product that we want to get more exposure across the web. We have had good luck with adwords and other ppc accounts and currently have a managed seo service so this is just to expand our advertising to other websites or advertising companies. Our product is a women' health product and we want to advertise with ROI being the driving factor across new websites like Amazon, women's health sites, other product related advertising sites. I need someone who is well versed in web marketing and has experience at building campaigns across the web that are profitable. Would prefer a flat monthly fee based on X results but may be interested in commission structure as well. Please only bid if you have had successful experience in web marketing. Thanks,