The Text Link Ads service has added a new service that lets you sell single post advertising, which will allow you to easily monetize your WordPress blog.
Deep linking is excellent for advertisers as it usually gets more benefits and allows a more specific and/or concentrated approach to advertising. I have always found Text Link Ads to be less intrusive than Adsense, but remember, there are some Google Page Rank effects to your site as you add more and more outbound links.
Installation is easy as they have made it into a WordPress plugin which you upload and activate on your site.
It could be interesting but I look forward to seeing how people do with the new addition to their popular advertising system.