SiteMiner, a service of MyComputer.com will crawl your site and store your info in a remote database. When someone enters a query in the search form on your site, the SiteMiner server application receives the query, formats the results, and sends them back in an HTML form with links directly to the pages on your site.
Platforms: all Internet-accessible web servers
Price: $19.95 per month or $199 per year for up to 1,500 pages.