[1] C. Castellano, S. Fortunato, and V. Loreto, Statistical physics of social dynamics, Preprint, arXiv:0710.3256 (2007).

[2] R. A. Blythe and A. J. McKane, J. Stat. Mech. P07018 (2007).

[3] S. P. Hubbell, The Unified Neutral Theory of Biodiversity and Biogeography (Princeton University Press, Princeton, 2001).

[4] J. F. Crow and M. Kimura, An Introduction to Population Genetics Theory (Harper and Row, New York, 1970).

[5] G. Baxter, R. A. Blythe, W. Croft and A. J. McKane, Phys. Rev. E73, 046118 (2006).

[6] V. Sood and S. Redner, Phys. Rev. Lett. 94, 178701 (2005).

[7] V. Sood, T. Antal and S. Redner, arXiv:0712.4288 (2007).

[8] R. A. Blythe, Theor. Popul. Biol. 71, 454 (2007).

[9] P. Trudgill, New-dialect formation (Edinburgh University Press, 2004).

[10] R. Condit et al., Science 295, 666 (2002).

[11] K. Suchecki, V. M. Eguiluz, and M. San Miguel, Europhys. Lett. 69, 228 (2005).

[12] C. W. Gardiner, Handbook of Stochastic Methods (Springer, Berlin, 2004).

[13] P. Erdos, and A. Renyi, Publ. Math. Debrecen 6, 290 (1959).

[14] G. Baxter, R. A. Blythe, W. Croft and A. J. McKane, in preparation.

[15] U. Tauber, M. Howard, and B. Vollmayr-Lee, J. Phys. A38, R79 (2005).

[16] J. Wakeley, Coalescent theory: An Introduction (Roberts & Co., Englewood, 2006).

[17] R. A. Blythe, in preparation.

[18] T. Nagylaki, J. Math. Biol. 9, 101 (1980).

[19] M. C. Pease, Methods of Matrix Algebra (Academic Press, New York, 1965).

[20] D. J. Watts and S. H. Strogatz, Nature 398, 440 (1998).