WordPress already comes with basic search functionality. It is more than good enough for most blogs. But you could always enhance it by adding real time search to your site. That’s what you get with Search In Place. It is a cool plugin that displays query results in real-time. It displays them dynamically as you enter your keywords.
Search in Place makes the search functionality of your site more dynamic. You can group search results by their type and even highlight the searched term in the search and results pages. The plugin is AJAX friendly and allows you to limit the number of elements in the dynamic search results. You can customize the design elements for this plugin also.
Search in Place is a pretty handy tool if you need a plugin to display search results in real time on your site. This is a free plugin.