thanks to Facebook....
... I can be in touch and get to know people from my family in Brazil I never even met face to face
I take the site for its good things - and move away from things that annoy me
plus, I must say some of my friends post a lot of interesting stuff that I would miss if not around Facebook - from political articles to interesting stuff on nature, sociology, good books. To me, the benefits and positives outweigh the negative stuff by a very long shot.
Students who left the lab over 10 years ago, somehow it is easier to connect through facebook than email - because through their posting and commentaries you get a broader idea of what they are going through.