How Facebook's News Feed works?

At Facebook, one of our main priorities is helping you stay on top of what is going on with the people and things you care about most. That's why today we are beginning to roll out some changes to the home page that simplify your experience by offering two views of News Feed: a summary view of the most interesting activity that's happened in the last day and a real-time view that shows you what is happening right now.

You will be able to catch up on what you may have missed while you were away from Facebook and then easily switch to the real-time stream when you want to see posts as soon as they're shared. Here's how it works:

News Feed
When you log into Facebook, you'll see the most interesting things that happened in the last day in the "News Feed" view. News Feed picks stories that we think you'll enjoy based on a variety of factors including how many friends have liked and commented on it and how likely you are to interact with that story.

Live Feed
Once you've caught up on what you missed, you can click through to "Live Feed" to see what's happening right now. As long as you remain logged into Facebook, you'll continue to see posts and activity from your friends in real-time. You can edit what appears in this view by clicking "Edit Options" at the bottom of the home page.