Facebook is the world’s biggest Social Networking site. It has been noted as the most visited site in the world. It has an exclusive chat application but it doesn’t have very necessary options or it lacks a few obvious options. Many users have complained that the chat doesn’t work. Here are the few desktop and web applications which can solve the problem:
Digsby
Digsby provides one combined buddy list for all your AIM, MSN, Yahoo, ICQ, Google Talk, Jabber, and Facebook Chat. It also provides social network updates and email updates which can be used as one stop client for all social networking and email needs.
ScrapBoy
ScrapBoy can be used as Facebook Chat Desktop client. It brings Facebook on Desktop. Wall posts, photos can be checked by this app.
Adium
Adium is a MAC client which can be used for Facebook Chat. It can also be used to chat with friends of AOL, MSN, Yahoo, Google Talk, ICQ and others.
Pidgin
Pidgin is great multi IM client for Windows and Unix systems, although it doesn’t support Facebook chat by default you can integrate it using this plugin.
Chit Chat For Facebook
This app that is built specifically for Facebook Chatting on Desktop. It has very basic features but excellent to use it only for Facebook Chat.
Palringo
Palringo have strong focus on mobile devices and if you like to use your phone for connecting to your friends – try this app. It can be used on Iphone, Blackberry, etc.
Social.im
Social.im does the job of importing your facebook chat on your desktop which gives you an impression of chatting through some desktop IM client.
Gabtastik
Gabtastik is a Site Specific Browser (SSB) which can be downloaded on your desktop. It works exactly like Mozilla Prism.
Fluid
Fluid is also a Site Specific Browser (SSB) but it works on Mac.
Which app are you using, let me know in comments! 
