Today at Facebook's f8 conference in San Francisco, CEO Mark Zuckerberg took the stage to unveil the next evolution of the service. The first major change? The Profile.

Zuckerberg noted that the original Profile was sort of like the last five minutes of your life. The updated Proile from 2008 extended that to show what was sort of like the last 15 minutes or your life. The new Profile unveiled today is "the rest," Zuckerberg noted. He calls this feature Timeline.

Read More: Facebook Unveils Timeline: The Story Of Your Life On A Single Page