With so many different ways to stay in touch, I've noticed that some people focus in on their favorite communication mode to exclude almost any other. For example, when I moved to my remote mountain community, I wanted to get in touch with an old friend who "only" lived 200 KMS away. Practically in our backyard! I tried Facebook; she hardly ever visits there. I tried her phone number; no answer. Finally in desperation, I facebooked her daughter (a total Facebook fiend and keeps me going in Candy Crush) and asked her how to get in touch. "Oh, mom never answers the phone but she loves text. Here's her number." I texted her and within minutes, we were reunited!
I had access to the daughter's Facebook account because in a flurry of connectedness, I "friended" my children's friends and friends. Pretty well all the young adults who grew up together.
I would have never got in touch if it weren't for Facebook/text.