Apple iChat
Free
Apple’s answer to Microsoft’s and Yahoo’s Messenger products takes the slick, simple design of Apple’s operating system and extends it to chat software, offering text, audio and video, along with a neat screen-sharing application so you can take control of a friend’s Mac, or show them your desktop screen – a great way to show colleagues how to do something.
It’s an elegant solution, and one wishes Microsoft and Yahoo would take some pointers from the clean, uncluttered design. If most of your friends and colleagues use a Mac, it’s worth considering – but, sadly, this is just for Mac users.
PROS Great design and quality – if everyone you know has a Mac
CONS Limited in who you can call