Add your company logo above the search results or change the font colors of results. For complete control over the search results user interface, take advantage of the XML API

Search HTML, Microsoft Office, PDF, PostScript, Word Perfect, Lotus, and many others

Index and search databases, including Oracle, SQL Server, DB2, Sybase, and MySQL

Pre-built connectors that index and search all content in SharePoint, Documentum, Livelink, FileNet, Lotus Notes, Hummingbird, Websphere, and many other systems

Content connector framework to easily create your own custom connector

3rd party content feeds to search non-web accessible content from portals, content management systems, or file shares by pushing it into your Google Search Appliance with a simple XML conversion

Provide users with secure lookup of business applications or internal databases, all in one consolidated display of results, using the Google OneBox for Enterprise feature. Simple phone book listings, graphs of inventory levels and sales trends, and much more, enhancing user experience and ease of use

Tie in with document security systems such as LDAP, HTTP Basic, and NTLM v1 and v2 

Support for Kerberos, Windows Integrated Authentication, forms-based authentication, X.509 client certificates, and other mechanisms

Source biasing and date biasing

Metadata biasing

Node biasing

Collection biasing

Ranking framework

Personalized search results (front-end biasing)

RAID disk drive failover and built-in clustered redundancy

Dynamic result clustering, query expansion, word stemming, and automated synonyms

Track every click, user, and query