I lived on a kibbutz in Israel for over two years during the period from 1989-93; best time of my life, made some excellent friends, set up a website about it, wrote a book etc... so I went on Facebook to try and track done some of those people.
On the kibbutz, volunteers (like myself) were assigned a family to be "adopted" by, so they could socialize easier and get to know people. I had a really nice "mum and dad" but lost touch. They had a son who was around one year old at the time. Yesterday, I searched for their names on Facebook -- nothing -- but found the son = now about 18!
So, I contacted him, gave the parents' name and asked if he was their son. Yes, he was. So, now I'm connected again with my adoptive family over in Israel.
And this is why I am passionate about social media, connecting, linking.
In a nice segue on the history theme, my wife works for Heritage Toronto, so I do some free PR for them from time to time. They just announced a great series of free iTours, and you can read the social media release for more info.
Torontonians -- the sun is shining, the city has some great heritage to explore, so get out there!