One for those writing up lists for [[Category:Red list]]! http://alex.halavais.net/an-analysis-of-topical-coverage-of-wikipedia/ http://www.blackwell-synergy.com/doi/abs/10.1111/j.1083-6101.2008.00403.x http://www.blackwell-synergy.com/doi/full/10.1111/j.1083-6101.2008.00403.x - d.