i-neighbors is a social networking service that connects residents of geographic neighborhoods.. Unlike websites that encourage global, national, or city-wide communication, i-neighbors links members of local neighborhoods as defined by the people that create them. i-neighbors helps individuals, communities, and homeowner's associations build social capital by providing a place for neighbors to find each other, organize, share information and work together to address local problems. Our goal is to help people create neighborhoods that are safer, better informed, more trusting, and better equipped to deal with local issues. Founded in 2004 as a not-for-profit, advertising, and SPAM free service, i-neighbors now supports thousands of neighborhoods in all 50 of the United States and all 10 Canadian provinces. i-neighbors is operated as an ongoing experiment in community building by a team of faculty and students headed by Prof. Keith Hampton at the Annenberg School for Communication at the University of Pennsylvania.