Microsoft Exchange is a computer server that centrally stores a company's email, files, task lists, calendar and contact information. Here are a few reasons Exchange is the world’s most popular business messaging platform:

• Mobile access: Easy access to email for handhelds like the BlackBerry, Treo or Windows Mobile devices.
• Centrally stored information: Allows email, files and other company data to be accessed from anywhere at any time.
• Shared calendars: Lets employees see colleagues' availability to schedule or rearrange meetings, book conference rooms, and plan projects.
• Shared task lists: Allows 'to do' lists to be created and assigned, then shared with team members.
• Shared contacts: Company or shared address books means important contact details will never be lost or misplaced.
• Outlook Web access: Allows for email and information access through an Internet Web browser.

Users can view email, calendars, task lists, contacts and more through Microsoft Outlook on a desktop or notebook PC, Web mail or a handheld wireless device.