Not a girl, but a guy. When I was living abroad and he was in the U.S., he visited me for a few weeks when he came to Japan. We originally met on troll central, Playstation Home, of all places.
Started out as friends for a long time, then were in a serious relationship for a while until I broke things off, but while it lasted it was pretty awesome until being separate became more difficult. Now I'm back in the U.S., but we live in different states. We very rarely talk now.
Also, I met two Japanese internet friends when I went to Japan. My longest internet friend (for 10 years) has been to my hometown a few times but we've never met in person. I plan on meeting her, and two other friends (one in Peru) in person someday, though.
LOL Oh, and, no joke, my sister married a guy she met on MySpace. They are divorced now. p(-_-)