Appletell

Facebook chat is a little awkward… it’s stuck in the browser, and even if popped out, it still runs in Safari. By closing the window, or moving to a new tab, you close your chat. Fortunately, Mac OS X makes it easy to run Facebook Chat separately from Safari. Here are the two easiest ways:

Web Clip in Dashboard
Simply navigate to Facebook, use the chat menu to pop out the chat in a new window, and choose “File > Open in Dashboard.” Then, arrange it as you please. I chose to make only my buddy list visible, so I can easily check who is online before starting to chat. When I wanted to chat, I either went to Facebook, or resized the widget to show the chat.

Fluid.app
This method is the better one for someone who wants to do heavier-duty chatting. First, download the free and awesome Fluid.app at http://fluidapp.com.  Then, launch Fluid, and type the following address into the field:

http://facebook.com/presence/popout.php

Give it a name like “Facebook Chat,” and save it. There you go! You now have a native Facebook Chat application.

Adium 1.2 is just around the corner, with a download available from the beta page. The team have added many improvements into the next version of the popular messaging client, specifically Bonjour improvements. Bonjour, Group Chat, XMPP, AppleScript and many minor features have been fixed and improved, resulting in a less-buggy version of the app. With group chat, inviting contacts is now as simple as clicking and dragging, and Bonjour file transfers are now possible. AppleScript has been improved as well, with it being completely rewritten. Within the contact window itself, groups are detachable from the main contact list.

A download is available at Adium’s beta page.

Via [Infinite Loop]
Download [Adium]