IceChat
Description: IceChat IRC Client allows users to connect to up to 10 IRC servers at once. You can send and receive files, and users can customize the look of IceChat with fonts and colors.
An auto-update program is also included, and IceChat has Scripting capabilites with extra custom commands.
Download at: http://www.tucows.com/preview/257421.html
ICQ
Description: ICQ ("I Seek You") is a user-friendly Internet program that notifies you which of your friends and associates are online and enables you to contact them. With ICQ, you can chat, send messages and files, exchange Web page addresses, play games, create your own homepage, and much more. With the click of your mouse, you and your friends are instantly connected.
Download at: http://www.icq.com/
MSN
Description: MSN Messenger Service is the Internet-messaging service that tells you when your friends are online so that you can send instant messages or chat with several people at once.
It supports setup for a pager address and file transfer, and it can be used to make phone calls to anywhere in the world. It also supports voice messaging.
Download at: http://messenger.microsoft.com
Trillian
Description: Trillian is a stand-alone chat client that includes support for AIM, ICQ, IRC, Yahoo! Messenger and MSN Messenger. You can even use multiple AIM, ICQ, MSN and Yahoo! accounts at once.
Trillian also includes a skinnable interface that uses XML.
Download at: http://www.ceruleanstudios.com/download.html
Yahoo! Messenger
Discription: Pager alerts you when your Internet buddies are online and lets you chat with them. It includes Yahoo! mail checker and sound alerts.
Download at: http://messenger.yahoo.com
Adium (Mac OS X)
Discription: Adium is a free instant messaging application for Mac OS X that can connect to AIM, MSN, Jabber, Yahoo, and more.
Download at: http://www.adiumx.com/
