ABSTRACT
Geosocial networking is a type of social networking in which geographic services and capabilities are used to enable additional social dynamics (Quercia et al., 2010). The location data collected from users allow social networks to connect users to local people who share some common interests. With the advent of mobile devices, huge amounts of location data are being collected. Despite of growing concerns on tracking location data, this trend will surely accelerate. At the same time, online social networks (OSNs) are becoming increasingly popular. As of July 2011, Facebook is
17.1 Introduction .................................................................................................. 397 17.2 Location-Based Social Networking Sites ..................................................... 399
17.2.1 Foursquare ........................................................................................ 399 17.2.2 Brightkite .......................................................................................... 401 17.2.3 Gowalla ............................................................................................. 401 17.2.4 Google Latitude ................................................................................402 17.2.5 Yelp ...................................................................................................404 17.2.6 Common Features .............................................................................405
