An extremely versatile application, iChat lets you participate in simple text chats, audio chats, or video chats with one or a group of people with Internet access and a MobileMe, AIM, Google Talk, or Jabber account. To get started, you first need to set up iChat on your system by clicking the icon for iChat in the Dock and responding to the questions in the dialogs that appear.
To add a buddy to your Buddy List in iChat:
That’s it. You’ve added your first buddy. If your bud’s online, you’ll see a status indicator next to his or her name, and you can start a chat with a quick doubleclick on your buddy’s name.