With more than 1 billion instant messages sent over the Internet each day and 3 million users signing up for free public IM services each month,instant messaging is one of the fastest-growing Web-based technologies.

• 每天有10亿条瞬时消息通过因特网送出，每月有300万用户登记使用免费的公共IM服务，IM已经成为发展最快的、基于Web的技术之一。