Main article: The news feed is the primary system through which users are exposed to content posted on the network. Using a secret method (initially known as ), Facebook selects a handful of updates to actually show users every time they visit their feed, out of an average of 1500 updates they can potentially receive. On September 6, 2006, announced a new home page feature called News Feed. Originally, when users logged into Facebook, they were presented with a customizable version of their own profile.