In fact I'm worry about my parents more than about myself. I'm almost sure that parents are dependent on their children more than the way that children are dependent on their parents.
I purchased an internet account for my parents, a couple of month ago, when I was there on a vacation. I taught my mother to use Gmail chat and she became able to chat me lots of time a day.
You know, I'm almost online when I am at work or I'm in home, so is my mother in home. She turns her computer on when she wakes up in the morning and while she is doing her houseworks, she talks to me and we chatting in our little free times.
Sometimes she talks to me about what she is cooking or the book she is studying and I tell her about my job or my friends or some new project that I'm on it these days. My father sometimes joins us too. We feel live together this way.