From the founder:
We’re adding something that many of you have asked for — the ability to control who sees each individual piece of content you create or upload. In addition, we’ll also be fulfilling a request made by many of you to make the privacy settings page simpler by combining some settings. If you want to read more about this, we began discussing this plan back in July.
Since this update will remove regional networks and create some new settings, in the next couple of weeks we’ll ask you to review and update your privacy settings. You’ll see a message that will explain the changes and take you to a page where you can update your settings. When you’re finished, we’ll show you a confirmation page so you can make sure you chose the right settings for you. As always, once you’re done you’ll still be able to change your settings whenever you want.
A welcome change! The social media wave has gained mass and momentum, and privacy issues are naturally surfacing as we ride the wave.