1. PPLive Homepage,
http://www.pplive.com/
2. SopCast Homepage,
http://www.sopcast.com/
3. PPStream Homepage,
http://www.ppstream.com/
4. Zhang, X., Liu, J., Li, B., Yum, T.S.: CoolStreaming/DONet: A data-driven overlay network for efficient live media streaming. In: Proc. Conf. on Computer Communications (INFOCOM), vol. 3, pp. 2102–2111. IEEE, Miami (2005)
5. Bollobás, B.: Random Graphs, 2nd edn. Cambridge University Press, New York City (2001)