It's possible that these social networking tools are just the beginning of something, that they could lead to ways of finding and interacting with one another we never imagined, but whatever happens, you can't dismiss these tools easily. They are taking us somewhere exciting, but we have to work out how we deal with the fading boundaries these tools have left in their wake and that means rewriting our social rules as we go along.
Social networking services expand the pool of people we have the opportunity to meet to near limitless possibilities. We're no longer restricted to or rely on people in our neighborhood, church, or workplace to provide the interaction we desire.
Of course, getting to know others online is not a new concept, it dates back to the earliest days of Bulletin Board Services (BBS), IRC, and CompuServe. The main differences now are the real-time ways we communicate via instant messaging, Facebook walls, and Twitter replies. It more closely mimics face-to-face conversations than interactions via email, forums, or message boards, but it also means there are a lot more opportunities for social gaffes and missteps.