Learn more and get tips from these articles:
How To Use FaceBook's New Selective Privacy Features by Steve Krause at informationweek.com (9/8/11)
The One Facebook Feature You Must Activate Right Now by Jason Sattler at All Facebook (9/7/11)
Better Facebook Sharing by Katherine Boehret at Wall Street Journal (9/7/11)
Go directly to Facebook's introduction here.
Which privacy features do you prefer-- Google+ or Facebook? Let us know in comments!