Tech Ed Connect
Interesting social / community approach at tech ed. You fill out your community quick card (here's mine):
and you then fill in a quick survey of your interests and the types of folks (designer, developer, etc.) you are interested in meeting at Tech Ed. Click on PeopleMap and hey! presto! a map with you at the center and others positioned so that proximity = closeness of match in interest. Mouse over tells you more, click on the individual to see their profile.
Neat way to make contact with folks.