I've had, and still have, wonderful online relationships/friendships with people I've met online.
I've been lucky in that I got to meet quite a few from the BG fandom at Galacticon.
But there is one special person that I had a friendship with for a number of years on the web. We made arrangements for, and actually did, meeting.
It was in 1997 in Las Vegas that we met.
That was the first person I ever met from the web.
Unfortunatly, she passed away a year later

I still miss her to this day.