Google Enterprise: Google Search Appliance: The latest version of the Google Search Appliance has direct connectors for some popular CMS systems, so it can spider their content both by browsing the resulting HTML pages, or by directly plugging into the systems.
The connector framework makes it easy for partners, developers and customers to write connectors to any content system. We have provided pre-build connectors for the following ECM systems: Microsoft SharePoint, IBM FileNet, OpenText LiveLink, and EMC Documentum. Learn more about the Content Connector Framework.
I wonder if you can replace the default search engines of the products with Google-powered search.