Messenger has no plans to charge for audio or video calling. If you have access, you’ll see the video camera icon in the top right corner when you’re having a Messenger chat with a friend who can be called.
Instead, it knows more messaging drives lock in with Facebook’s News Feed where it makes tons of money from ads. Tapping it starts a video call, which opens when the recipient accepts.
Mark Zuckerberg said on last week’s Facebook earnings call that Messenger already accounts for 10% of global mobile VOIP calls.
Chat room users register for the chat room of their choice, choose a user name and password, and log into a particular room (most sites have multiple chat rooms).
Instant Messaging (IM or IMing) is a service allowing users to send typed messages, pictures, files, and live video to a recipient based on their screen name.
This exchange can go back and forth as long as both parties desire.
A chat room is a Web site, part of a Web site, or part of an online service such as America Online, that provides a venue for communities of users with a common interest to communicate in real time.
Forums and discussion groups, in comparison, allow users to post messages but don't have the capacity for interactive messaging.