In my pre-FB days, I got an e-mail from a former best friend, who I had a falling out with while in high school. She sent a friendly e-mail, so I replied in kind. Never heard back from her, but I immediately started getting junk e-mail from all sorts of sex sites and other groups I would have no affiliation with. Too much of a coincidence for me. She's still the same female dog I cut ties with in high school.
On the other hand, I have reconnected with quite a few high school friends through FB. We're not as close as we were back then (mumblely-mumble years ago, pre-Facebook, almost pre-internet), but it's fun to see what they're doing.
That is so full of suck Dyson doesn't know how they did it - shankyknitter