You know my old saying...
"Connect on your similarities and profit from your differences"
One of the best places to practice that -- if you are a progressive, technical, social, global/local thinker is at the annual Pop!Tech conference held in Camden, Maine every October. Can't remember how many people I met -- many more than the biz cards I collected. They were ALL interesting, if not outright fascinating, each in their own way!
Andrew Zolli, who is the conference curator, is a master network weaver -- connecting others through placement in the program or F2F introductions. You want to connect to Andrew, he will close many triangles for you.
THE conference for connecting -- Pop!Tech.