Deforestation vs adult&drug tax

Numbers that matter in Consulting - global statistics for consulting industry:

http://www.plunkettresearch.com/Industries/Consulting/ConsultingStatistics/tabid/177/Default.aspx (LS)

Global Consulting Industry Revenue (including HR, IT, strategy, operations management & business advisory services) equals 345 Billion US Dollars. (LS)
Management Consulting is by far the largest segment with $142.7B in 2008 (CR)

-What is the fastest growing segment of consulting? IT? We should be able to find this out with numbers (CR)