This is great. It's wonderful to openly discuss how facebook is a driving force in people's social lives, especially mine. I was in the "relaxing phase" on FB until randoms I sort of knew started friending me again. It made me nervous; why were people I went to high school with 5 years ago thinking about me again? I finally realized it was this new feature that was to blame. And it's in the Observer. So it's real news.