Instant Messaging for business

"The benefits of IM

IT managers have recognised IM's potential for rapid communication and ability to create ad hoc discussions between employees and external partners. But instant messaging becomes an even more powerful collaborative tool when combined with features like document sharing, white-boarding and graphics.
IM is an attractive business tool for a number of reasons.

• · Instantaneous
• · Flexible
• · Works anywhere
• · Allows attachments
• · Multiple access options

Messages are sent in real-time and replies can be instantaneous. IM is very flexible: you can hold simultaneous chat conversations with different people or you can participate in a group conference session. Your online colleagues can be in the same building or on another continent. You can send attachments instantly too;
Unlike phone calls, IM incurs no additional costs. Unlike chat rooms, you can monitor who is allowed to contact you at any given time and people can only 'add' you if they know your exact email or IM address."  - Instant Messaging for business | News | TechRadar