The file football.gml contains the network of American football games between Division IA colleges during regular season Fall 2000, as compiled by M. Girvan and M. Newman. The nodes have values that indicate to which conferences they belong. The values are as follows: 0 = Atlantic Coast 1 = Big East 2 = Big Ten 3 = Big Twelve 4 = Conference USA 5 = Independents 6 = Mid-American 7 = Mountain West 8 = Pacific Ten 9 = Southeastern 10 = Sun Belt 11 = Western Athletic If you make use of these data, please cite M. Girvan and M. E. J. Newman, Community structure in social and biological networks, Proc. Natl. Acad. Sci. USA 99, 7821-7826 (2002).