Jitsi: Free Messenger Client Supporting Audio and Video Chats
Jitsi is a free messenger client for Mac that supports a wide range of instant messaging protocols, including SIP, Google Talk, XMPP/Jabber, MSN, AIM, Bonjour, ICQ, Yahoo Messenger, and Facebook chat. It also allows users to have audio and video conversations. Setting up and using Jitsi is simple and straightforward.
In the main window of Jitsi, you can find all your personal contacts from various IM protocols. The chat window allows you to exchange instant messages, as well as initiate video and audio chats, including group chats. Jitsi keeps a history of your chats and offers a limited number of emoticons.
Although the interface of Jitsi may not be as intuitive as some other IM clients like Adium, its ability to initiate audio and video chats gives it a serious advantage. Jitsi is constantly being updated, and you can easily choose the latest version from the nightly build page.
Overall, Jitsi may not be as slick as other IM clients, but its wide support of IM protocols and audio and video chatting capabilities make it a very interesting option.