The people who visit here are mostly programmers and administrators looking for information on Linux or Unix. This is an excellent site for advertising conultant services, Unix and Linux software and hardware. Alexa traffic rank charts are displayed just below (low numbers are higher ranks). You can also visit UrlTrends for traffic indicators and we can provide Google Analytic reports on request.
Demographic data is available from Quantcast.
Google Adwords is an excellent choice. Your Google ads will run here anyway if they are targeted for Unix/Linux. You can sign up for this specific site by using the "Advertise on this site" link at the bottom of Google Ads. See Placements for more information.
If you are providing any sort of Unix/Linux related service, you can get listed (free) at Other Unix Consultants
Yes, I'd probably like to review your product, and publish an article about it here, but write to me before sending it to me, and make sure that I can keep it long enough to get to it. I'm always way behind on that kind of thing, but it is something that I try hard to keep up with.
Understand that I'm going to have my own opinion about your product, but I will give you a chance to respond to what I say here, and I will publish your response if you want me to.