I like both online and real, physically present friends. I'm a lot more at ease sitting at a keyboard interacting with people, but I have three or four fairly longtime "real" friends that I will visit with now and then. As long as the group (including me) is no more than three people I don't get too anxious. Two is far better than three, though. More than three, and I'd rather not get together at all.
I don't do any chatting via internet since I've found it more a nuisance than a pleasure the times I've tried it. I thought technical or special-interest chat rooms would be pretty wonderful but I dropped that expectation after I found that there was generally nobody to talk to, or nobody to help me with a computer problem, etc. Forums are better for that, because your request gets more exposure.
As far as just chatting, I don't like to do it anyway, so I'm not missing anything there. Serious conversation is a pleasure; chatting is a real turn-off, for me. (That includes on the phone.)
I've been friends with one person for five years now, another for twenty, and a third for almost thirty-three years. I depend too much on these people and worry about that quite a bit.