Publications
Power laws, Pareto distributions and Zipf's law
Newman, M. E. J.
Contemporary Physics, 46() 323 (2005) [pdf]
Zipf's Law and the Internet
Adamic, L. A. & Huberman, B. A.
Glottometrics, 3() 143-150 (2002)
Zipf, Power-laws, and Pareto -- a ranking tutorial
Adamic, L.
, http://www.hpl.hp.com/research/idl/papers/ranking/ranking.html(2002) [pdf]