Have you ever had a visitor to your WP site complain, they couldn’t find what they wanted? Especially when they typed in a keyword into your search field and the search results were not what they were looking for? I’ve actually been looking for a plugin like this, called “Better Search“. It will give you search statistics and a heat map of search terms. Using these stats, you can fine tune your categories and tags to help the search engine do a better job of returning results.
Another choice is using the Google powered WP site search plugin. We’ll take a closer look at that in the future.