I think we are creating so many "friends" that we never get around to having actual "friends!" A "friend" via FaceBook/Twitter/LinkedIn, is at best, an acquaintance with whom we have something in common. A "friend" is much more than that, at least to me. S/He may not live next door, they may even live in another country, but I know I can call them any hour of the day and they will either be happy to listen/talk or even come to my house! And most of them are not afraid to be seen in public with me!
I don't know that I agree with that. I've made "friends" on social networking sites (and before them, on BBS systems...anyone remember those?) who have turned into real-life, close friends, and in some cases lovers. The fact that they started out online doesn't mean they aren't real friends.
To me, that's the whole beauty of social networking. You can meet people who in earlier times you would never have been able to find at all.
Now, some people I meet online will never become true friends, of course. But that's the way it works in real life, too.
I agree about the use of texting. I'm amazed at the willingness to spend money whether sending or receiving one by the vast majority. And they use a system that requires much more direct attention to the device, takes longer to say the simplest thing and cannot provide as much emotional expression easily. Yet the device that can make connections at near the speed of light while taking all that extra time and attention.
It's like using a rifle to remove the cap from a bottle of catchup! Sure, the cap comes off quickly, but it still takes longer to remove all those little bits of glass after you walk back from retrieving the bottle! And, by then, the hamburger is cold!!
The thing about texting that I like is that it is less immediate than, say, a phone call. If I am in a position where I'm doing something that can't be interrupted by a phone call--talking to a client, watching a movie, spending time with my girlfriend, working on a client job with a tight deadline, something like that, say--the text message will come in and then sit on my phone until I can get to it. I can respond and not interrupt whoever I'm responding to. A phone call would have to be ignored and then returned, which might interrupt the person I'm calling back.
Text messaging is more immediate than email but less immediate than a phone call. For folks who are often busy, that's a perfect kind of communication.