Most IM programs, including Windows Live Messenger and Google Talk, allow users to talk just as you would over a telephone, and some offer video-chat capabilities. Personalization capabilities have exploded, with IMers able to customize personal icons, screen interfaces and greetings. Windows Live Messenger allows instant-messaging between Xbox 360 gamers. A Google Talk user can archive IM conversations and also drag files and folders directly onto the chat window, with photos showing up instantly in their friend's chat window. Many providers also allow users to IM and file-share from their cell phones and mobile devices, allowing access to their services any place, any time. Most services offer file-sharing, and AOL, Yahoo!, Google and MSN have integrated IM service with e-mail service, so users can receive e-mail notifications while instant messaging. IM capabilities have greatly expanded in recent years. Microsoft and Yahoo! joined forces in 2006 to allow their users to communicate with each other on one service.Įlvis fans can find plenty of buddy icons on AIM. One of the provisions of the AOL-Time Warner merger in 2001 was that AOL would allow access to the AOL community and AIM protocol, but since then other instant-messaging utilities have provided more accessibility. A key reason for AIM's initial popularity is that it allowed AOL subscribers to communicate with nonmembers. The major IM utilities use a proprietary protocol that is not understood by other instant-messaging services, so users of one service are usually blocked from contacting members of another. According to a 2006 study by comScore, which measures Internet usage, about half of the online population uses IM. Proprietary multiprotocol applications like Trillian and Pidgin, which allow users to IM on several services at once, are also rapidly gaining in popularity. Google recently introduced its IM system, Google Talk. Windows Live Messenger (formerly MSN Messenger) and Yahoo! Messenger, in particular, have become widely used around the globe. In the past few years, though, a number of services have cut into AIM's audience. Not long after AOL bought ICQ, AOL Instant Messenger ( AIM) became the IM leader. Users of AIM can personalize their own "WeeMee" buddy icons. In the clients of your contacts that are online, your name moves to the offline status section. Finally, the server deletes the temporary file that contained the connection information for your client. The server sends a message to the client of each person on your contact list who is currently online to indicate that you have logged off. When this happens, your client sends a message to the server to terminate the session.
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