Google Apps and its APIs open up a wide variety of new opportunities to integrate and extend Google's communication and collaboration services. Domain adminstrators can use the APIs to migrate from and integrate with existing IT infrastructure. Application developers and systems integrators can use the APIs to extend, customize, and integrate Google's growing offering of services.

Integrate Google Apps with existing systems:
• Programmatically synchronize with a user directory
• Take full control over authentication of users and leverage a single sign-on system
• Seamlessly replace an existing calendar application without missing a meeting
• Meet regulatory compliance, data retention, and message content policy requirements

Extend and customize Google Apps:
• Create a dynamic start page gadget to provide easy access to essential information
• Publish calendar event information into a custom display
• Create a data driven application that persists to a spreadsheet
• Bring real time presence, messaging, and voice into client applications