IM, such as MSN and QQ, is a continuous channel. Users open an instant messaging channel for the day. Then they just keep it open while they do other activities.

• 及时消息诸如MSN和qq是种可以持续进行的交流方式。使用者在一天伊始打开及时讯息，那么他们在做其它事情时都可以开着使用。