They developed an instant messaging system called QQ.

腾讯创立于1998年，它开发了一种称作QQ的即时通讯工具。

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The subject is studied and USES JXTA to put up P2P network, to finish the instant messaging system.

课题研究使用JXTA搭建P 2 P网络，完成即时通信系统。

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After doing research on present instant messaging system, author brings up a new architecture of instant messaging system.

在对目前的即时消息系统进行了研究之后，提出了一种新的即时消息系统结构。

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Looking to shed weight and beef up a sleek new image as a Web-based media company, AOL is attempting to sell off its social networking site Bebo and instant messaging system ICQ.

FORBES: AOL Aims To Shoot Messenger, Boot Bebo

For one - very brief - moment in February, Liu Xia, was, it seems, able to access a computer and have an online conversation with a friend via an instant messaging system.

BBC: Held 'hostage' by China

But the catch with alternative instant messaging services is that each one is a closed system.

CNN: One-third of Americans prefer texts to voice calls