Welcome to ZKOUT, the social network that allows you to meet real people in the real world using your location to find nearby people and points of interest.
WhoShouldiFollow looks at who your Twitter friends follow to suggest new people. By adjusting the sliders on the results page, you can give greater preference in the ranking to less popular Twitter users, or those who are near you.
The algorithm is an item-to-item collaborative filter, somewhat similar to how Amazon makes recommendations.
10 great ideas to easily incorporate into any classroom. Also contains links to other resources based on teachers who have used Twitter in their classroom.