I have friends online that I've known online for 10 years and never met, but they're my friends. I think if you meet a kindred spirit, you can be friends online. I think people tend to relate online similarly as they do in life. There are people who are satisfied with Tweet style interaction and some who think unless you cozy up and talk deep into the night, it was no good. I think it's a mistake to believe that you can't actually be friends unless it's in person.