With over four million users, Google Apps is one of the fastest growing email and collaboration platforms available.

Google apps helps your employee’s to work smarter and collaborate more effectively wherever they are located. Google’s solution is 100% web-based, which means no more expensive, complicated local email server and no more desktop email client support. All you need is a modern web browser.

Google Apps includes secure, reliable workplace tools for email, chat, calendar,
document creation, video sharing and project websites, and allows for easy
extensibility with hundreds of applications in the Google Apps Marketplace.

Switching to Google Apps with DataSwift is easy, whether you are a small company using POP or IMAP, or a large organization using Microsoft Exchange, DataSwift can migrate your data quickly and with minimal downtime.
Google Apps for Business can even be integrated with familiar tools such as Microsoft Outlook to make the transition that little bit easier.

If you are a school it gets even better, Google Apps for Education is absolutely free.

More information:

http://www.google.com/intl/en_uk/enterprise/apps/business/resources/library.html