[superasn]

I think you should analyze the source of traffic first. Install Google webmaster tools to get the list of top keywords your site is ranking for. GWT tells you the exact number of impressions/clicks which first of all confirm if the traffic is legit and second of all tell you exactly what people are searching for coming to your site and the sites that are linking to you (also a good indicator of what your audience is visiting)

Once you have that data you have a very clearly defined target audience to go after via a product or custom advertising