Yosem - This is a bit of a long shot, but in 2007 Sandra Harrison was working on this topic - Harrison, S., Ed. (2007). 'Transgressions, miscommunication and flames: problematic incidents in email discussions' in Mia Consalvo & Caroline Haythornthwaite, (Eds.) AoIR Internet Annual Volume 4, New York: Peter Lang, pp 105-117. As I recall, her research pointed to a similar statistic, that 5% of the people produced 95% of the flaming. Her paper might have citations to similar percentages in other contexts. Someone at AoIR presented on this topic regarding email contributors, I cannot recall when or where I heard them, hopefully they will come forward! Cheers, Denise Dr Denise N. Rall, Research Assistant, School of Health & Human Sciences Exhibitor, Art in Chemistry, NeXT Gallery, Magellan St., Lismore, Opening Thursday 18 August 18 5-7 PM, On display 8-26 August, 2011 Lismore NSW AUSTRALIA Mobile +(61)(0)438 233344 Fax +(61)(0)2 6624 5380 http://www.scu.edu.au/schools/esm/staff/pages/drall/