With the idea of paying for placement under a particular keyword or phrase, the results should be more accurate with regards to relevance of the search. The trend in this way of searching is picking up due to this, but mostly to the lack of funds at many search engine companies. So you may want to take a look at what your keyword focus is going for these days on the auction block. Definitely worth checking into. Now before you think it, it s not always as expensive as it sounds.
Some models work along the same lines as pay for placement engines.
Direct Hit offers a 'pay per impression' model that dishes to other engines. For a few pennies a click, you could have a link, and a pretty lengthy description at the top spots. Although your site may not be so new, there are new visitors to the Internet everyday. Sites like Etour help new surfers find what they are looking for based on keywords and descriptions. Netscape has built it into the toolbar.