I have both types of friendships.

However, I've been talking to 2 friends that I met online and have never seen, I talk to one about EVERYTHING, he is pretty great. The other is my artist friend, who is the only person I can talk to about art.

It's nice to feel like you have friends in other parts of the world, and that it's possible for people to have a communicative flow even if they've never seen each others faces