The Google SharePoint Sitemap deploys like any standard ASP.net 2.0 application. Using API calls, the application queries SharePoint and constructs clusters of links which are presented to the Google Mini’s web crawler for consumption. Using this recursive process, the Google SharePoint Sitemap is able to retrieve content nested in subfolders, sub-sites, and other lists not normally accessible through SharePoint’s standard search.

Yearly support and upgrades for Google SharePoint Sitemap (GSS)