Do people have pen pals anymore?

I remember that in the old days, when there was only snail mail, it was fun to correspond with someone in a foreign land. The letters would take a week or so to arrive if you used airmail, a month or maybe two if you used “surface mail”. It was a more leisurely pace, you did not feel compelled to reply right away, and the letters tended to be long. It was a pleasure to read them.
A quick Google search shows that there are at least a dozen pen pal websites. I’m wondering if any of you have used any of these sites to find people just to correspond with. What websites are best? Did you learn about other cultures this way? And did you eventually visit each other?
Is this sort of activity still popular, or are these sites no longer necessary for this purpose because we now use email, Facebook, and other social networking sites?