Facebook

This week marks the launch of Facebook Chat—a new way for you to communicate with your friends in real-time. The Wall and Inbox have been the primary ways to communicate, but when more immediacy is necessary—for example when making plans for lunch in half an hour or arguing over a foul call in the NCAA tournament—they might not be enough. Chat aims to fill this gap.

We'll be rolling this out slowly going forward, but fairly soon you'll notice our new Chat bar at the bottom of your browser—no installation or assembly required. From this bar you can view your list of online friends and open conversations with any or all of them. There's no need to setup a "buddy list." Unlike the Wall or Inbox, the messages are delivered and displayed to your friend as soon as they're sent, so you should expect a response right away and without any page loading. Of course, Chat has to play nice with the rest of the Facebook experience. You can collapse conversations to get them out of the way, and go offline if you don't want to use Chat at all. Chat is there when you want it, and tucked away when you don't.

We're working on pulling other features of the site into the real- time Chat world. Your notifications will now arrive in the Chat bar, and while chatting you'll see your friend's Mini-Feed activity thrown into the conversation, as it occurs.

Before we jump head-first into this new real-time approach to Facebook, it's worth spending some time thinking about privacy. Conversations are one-to-one, completely private, and only between Facebook friends. The message history is saved from page to page, and even between login sessions, but it is not logged permanently. Should you wish to clear out the history immediately, there's a link provided in each conversation to do so. If you don't want your Mini-Feed stories embedded into your conversations, you can turn off that feature from either the Mini-Feed privacy page or the Chat settings panel. As Chat grows and evolves, we'll continue to make sure that you are in control.

Chat is by no means a new concept, as instant messaging systems have been around for over a decade. But just as other features on Facebook have allowed friends to communicate more efficiently than before, we hope Facebook Chat will make it easier to connect instantly.



Josh, a Facebook engineering lead, is checking who's online.