Were it not for the Web, I wouldn't have my current job, as I'm a developer. I'd probably still be fighting it out for COBOL programming jobs, which weren't bad, but working in retail and finance was a little soul-destroying. I also wouldn't have been able to have a 15-month relationship with a guy in Atlanta whom I met at Dragon*Con. (The relationship didn't last, though we still chat 4-5 times per week on Skype.)
One evening, while I was at a convention here in Toronto, I took the time to call him up and chat. I was carrying my laptop around the hotel and introducing him to all of my friends over the webcam. As one of them said, "Technology is amazing, isn't it?"