TED is a 4-day annual meeting held in California since 1984. Speakers from all countries inform (and entertain) each other with brief lectures about their expertise. Dozens of speakers will take their turn at a meeting. Read More
With FourSquare, users can share tips from location. It is about tips of the form: in this restaurant they have good food, in this café it is always too busy on Sunday afternoon, etc. Users of FourSquare get points for the tips, and also points for check-in at a location. Check-in is meant to indicate: I am now present at this location. The idea here is firstly that you can see your friends. So it is a website (with applications for your mobile phone) with three goals:
The game element is thus in the points, and for certain actions you get a badge (this may be frequent check-in on a day, often leaving a tip, adding new locations, etc.). In this way the game element is thus as many points as possible, but also collect as many badges as possible. In America it is already normal, but Dutch companies are now playing in this. If you are mayor of a location, you can get free things. Check out the Snack square website to see the Dutch participants.
Social Location Sharing-Gowalla/Foursquare