SICQ Groupware

From Westdog.com:

SICQ Groupware may be the smallest, fastest ICQ-like software which supports plug-ins. With all different kinds of cool plug-ins, you can do instant conference, Chinese Chess, I-Go, Five Chess, etc, without having to reinstall the whole software. We are dedicated to provide our customer more excellent and more useful plug-ins. We also welcome third party or individual developers to provide plug-ins for SICQ. Key Features:

• Fast connection and small size
• Multi people netmeeting
• Off-line message support
• Voice chat
• Friend Online notify
• Amusement (I-Go,Five Chess,Chinese Chess)
• Appendent to upgrade
• Personal information management
• Hotkey support
• Real time searching for online clients
• Friend list is stored both on the server and on the client
• Message arrival reminding
• Plug-in support