Google Apps - cPanel setup wizard.
What is Google Apps?

Google Apps™ is a suite of Google® applications that brings together essential services to help your business. This is a hosted service that lets businesses, schools, and institutions use a variety of Google products -- including Email, Google Docs, Google Calendar, and Google Talk -- on a unique domain (e.g., www.yourcompany.com).

For instance, if you own the domain example.com and you sign up for Google Apps services, everyone at your organization will get:

1. A custom email address (user@example.com)
2. Tools for word processing
3. Spreadsheets and presentations
4. A shared calendaring system
5. Tools for creating web pages and sites for your business
6. Access to a flexible intranet system
7. And much, much more!