Google Search Appliance - GSA
Google Search Appliance (GSA) is an enterprise search hardware solution designed to deliver universal, enterprise-quality search across an entire organization. GSA offers several options for customization and lets individuals within the organization access only the information they have permission to view.
GSA features People Search, Dynamic Navigation results filtering, Active-Active high availability and Sharepoint 2010 compatibility. Google enterprise search also offers organizations a universal search function that extends search results beyond internal files and databases to include content from social media streams and cloud computing applications.