TrafficEngine

Traffic Engine, billing itself as "Powering SMarT Advertising", combines Internet marketing with search by displaying targeted online advertising on publisher's websites.

For advertisers (from the website):

Take advantage of the people using search keywords relevant to your website, company, products and services. Your company's customized ad appears as search results on the Traffic Engine expansive network of search engines and destination web sites. We match your ad with the most appropriate audience, and you only pay for the customers that visit your website, not the number of times your Web site link is displayed in search results.

For publishers (from the website):

We provide you powerful tools to create steady income streams and to shift your traffic's earning potential into overdrive. Display highly-targeted ad listings on your website in a format that maintains your site's look and feel; these relevant ads aren't disruptive to your users' experience and can even can help build loyalty while providing you additional revenue.

Our ever-expanding network of diverse advertisers means Traffic Engine only delivers the most appropriate ads for your site, no matter how niche your content. We offer industry-leading revenue share and a diverse advertiser network; key tools for your success.

See how Traffic Engine will work for you. Our SMarT platform ad placement logic = high click-through rate. Multiply this with top revenue share and you'll learn why Traffic Engine is one of the most popular pay-per-click search networks in the world.

I haven't tested out their products, but I do like how they have come up with the name for their platform: Search Marketing Technology (SMarT). Nifty that.

Visit Traffic Engine