Names used for the sake of Nicky, who is the only one who knows these people. :p
Moving to the other end of the world kind of kills this for the most part. Nicky (Calliope) is the only true, genuine friend I have and keep up with that I knew in high school. However, I do keep in touch with a lot of other friends through Facebook exclusively. Oh, and I did get a wedding gift from Christine, who I actually knew since I was a little kid as we went to the same church, but I keep up with Christine to the tune of a few FB private messages every few months at a guesstimate. Beyond that, yeah, it's all just random comments on random Facebook updates (mostly by Stu), nothing much more. I was really close to Graham in high school but I'd say I'm much closer to Anna, his sister, these days because she and I actually bother to comment on each other's Facebook while G is just... well, I don't think he uses the internet so much, I guess. :p
If you count friends I started knowing while in high school that aren't actually from my high school, then you can add a buttload of EoFFers. :p If that only counts if I meet them in person then I can say that I met Tammy, Kelly and Jewels while I was still in high school and I keep up with them all to some extent, mostly Kelly as she's the most active online.