My work schedule is a great way to manage and communicate with a diverse or geographically separate workforce in a convenient and cost effective manner.
Some of the benefits include:

Manage Your Work Force Online
Email Notifications
Pager Notifications
Online Schedules
Online Signup for Shifts
Full Administrative Group or Contract Management
Manage Your Work Force Online

You can post schedules for employees or you can allow contract workers to sign up for shifts. It is perfect for contract IT workers, security forces, temp agencies, pilots, trucking companies, temporary agencies and many, many others.