Facebook's New News Feed: See Best Friends' Updates First

Facebook is tweaking its News Feed again, with yet another update that gives users more control over what they see in their streams. This time, Facebookers can choose which friends' and brands' updates they want to see first.
Greg Marra, product manager at Facebook, told NBC News in an interview, "We rank [items in] your news feed with the goal that whether you have five seconds or five minutes, you're seeing the best of what's in your feed.