In Pictures: Facebook turns 10 - A look back at th...
Launching News Feed
Part of the broader rollout included the News Feed, a controversial feature when it was first introduced in September 2006. Prior to the newsfeed, Facebook uses had only their profiles, on which other users could see photos they shared and posts their friends had left on their Wall. The News Feed aggregated all activity within each user’s network and displayed it on the Facebook.com homepage, meaning that posts to other users' profiles were visible to all of their connections in real time. This elicited a negative response, to which Zuckerberg replied in a blog post apologizing for functionality issues and declaring, "stalking isn't cool; but being able to know what's going on in your friends' lives is."
In Pictures: Facebook turns 10 - A look back at the milestones