Indexer is a smart search stack, which solves the common problem of offering a site-wide search capability of webpages in RapidWeaver. Indexer works by taking your website sitemap.xml file and spidering each of the pages listed. It extracts the page title, meta keywords and meta descriptions, and builds its own database comprising of this content. When a user navigates to search page built with Indexer, they are presented with a 'live' search box that quickly returns webpage search results.
Note: Kind of a complicated stack. Will set it up on billgeorge.com when there's time and link to it below.