IM (Instant Message)
IM stands for Instant Message. It is a popular way to communicate over the Internet. Two people with the same IM client software can communicate with one another by typing messages. The IM software can also keep a list of friends and let the user know who else is online. After seeing who is online, the user can open up chat rooms with as many other people as he or she wants. Instant Messaging is more efficient way than sending multiple emails. Instant Messaging has become very popular with friends and co-workers. Yahoo Messenger, MSN Messenger and Google Talk are Instant Messaging clients.