Before we get into the details and implications, here's a "real-time" example of how the updates, which are rolling out in the coming weeks, will work: As I write this, I'm listening to the band LCD Soundsystem on an Internet music service called Spotify. Because I've updated my Facebook page (here's a TechCrunch article on how to do that if you're interested) and because I've logged in to Spotify with my Facebook identity, every song I listen to is automatically shared to Facebook.  Suddenly, my listening experience isn't private. It's public. All my Facebook friends are watching. And judging. Chances are this will affect people's behavior online. If you're a closet fan of Lady Gaga or Bjork or Enya (I'm all three), then you'll just have to stop listening to those potentially mockable artists -- either that, or all your Facebook friends will be chiming in with comments:  "OMG, you're listening to that?!"  In the old world of Facebook, I would have to click that I "liked" a song for it to show up on my Facebook profile page. That's something you have to think about: "OK, I really like this song, and I really want all of my friends to know that I'm listening to it right now." Now, sharing is both passive and automatic. It's a choice you make in advance -- one time -- and never again.  And so it goes with all kinds of the new "real-time" apps.  Since I've logged in to Yahoo! News with Facebook, every time I read an article on that site, it goes to my Timeline.  The same is true for Hulu and TV shows.  And for the Internet game "Words with Friends." When I play a Scrabble-style word in that game, it will show up on Facebook, along with an image of the current playing board.  For Facebook, this is obviously a good thing. The site's goal -- as postulated in "Zuckerberg's Law" -- always has been to get people to share more and more information about themselves. That's bound to happen in this new auto-share era.
A couple years ago, a Microsoft researcher named Gordon Bell embarked on a personal experiment: He would wear a video camera around his neck all the time and keep this "life recorder" always turned