When I was a kid, I had this friend Antaeres. (I wrote about her previously here.) I didn't see her a lot - a couple of times a year - but we always had tons of fun together. I lost track of her sometime in late junior high/early high school, although for several years I continued to receive Christmas cards from her. Finally, even those dried up. I tried sending her letters once or twice, but I never heard back from her, so I figured she moved.
The good news is that I managed to find her through the power of the Internet. Again, wrote about it a little here. Eventually, we connected through MySpace of all places (so it will always have been good for something, I suppose!) and we managed to meet up right before she moved to Arizona. Now we keep in touch through Facebook, and it's been really great. I mean, it's a pity that we can't meet up more often because she's away at grad school, but she's so smart and it's been amazing to see what an awesome adult she grew up to be.