I personally don't categorize my friends into "IRL friends" and "Online Friends". Friends are friends to me, no matter how/where we met or how far away they live. My best friend of 6 years I met online. Another really close friend of mine moved across the country. I've even met people here that I've gotten close with that have posted here in this thread. I don't treat any of them any different.
For the past few years, actually, I've felt a kind of Wanderlust so to speak. I've never really been comfortable staying in the same place. If I hadn't quit my job, I would've had my third trip up to NY alone. I guess I love the sense of adventure that comes with going to different places. Hell, if I had the money, I'd be visiting many different places all the time. What does that have to do with IRL friends and Online friends? I guess it means that I don't really have a sense of really having a home. I mean, yeah, I love my family and that's where I am now, but I don't completely feel at home here. I'm not sure when that's going to happen, but I know that it's not here. And since it's not here, my friends here will turn into Online Friends. I'll still treat them the same as I do now, we just won't hang out.
Other than that, other people have provided my same statements, so... Yeah ^^"
On a side note, I've even been able to sit down and have full fledged, hour upon hour of conversation with friends through Skype... I normally wouldn't be able to do that in person, because I'd get kind of bored, or that awkward silence would rear its ugly head xD