On the orkut side, things are getting quite interesting. Using orkut as an organizing principle, I've been able to make contact with many people who I had fallen out of touch with (usually they switch email addresses or work situations).
In a way, orkut is a way to visualize your Karass. If you don't know what a Karass is, read more Vonnegut or uze google dood.
Still looking for Luc Cayer of Edmonton, AB. Bueller, anyone?