If you talk of a blog, How much monthly unique visitors must be there in order to sell a link/banner on a technical/non-technical blog? What are the chances of getting a link or banner sold on a blog with monthly 1500 unique visitors? If chances are good, what must be the prices for the links or banners placed on first screen view on each page?
You can make sales on PR0 blogs (although not as many) relevancy is usually the most important factor.
@dcisto: what must be the rates etc for links and banners? More suggestions and comments etc required.
Selling text links on your site will be harder without Pagerank because that seems to be all anyone focuses on anymore. With that many unique visitors, you can definetly sell some banner ads though. Check through websites like Adbrite and see what other ads in your niche are selling for. It will show you their traffic information, so hopefully that will give you some ideas.