@inproceedings{brightkite:sin09,
  title = {Analysis of a Location-Based Social Network},
  author = {Nan Li and Guanling Chen},
  booktitle = {Proceedings of the International Symposium on Social Intelligence and Networking (SIN)},
  address = {Toronto, Canada},
  year = 2009,
  month = aug,
  url = {http://www.cs.uml.edu/~glchen/papers/brightkite-sin09.pdf},
}