can someone help me!!!

I am writing a paper on online gambling and I was wondering if anyone could help me out with a good source..

iam looking for info on growth/profitability, locations (costa rica? belize? ) and worldwide distribution of users..

thank you all in advance.

and for those of you who play at paradise, true, pokerstars, wsex, poker.com I will see you at the tables when iam done.

http://www.worldonlinegambling.com/history/onlinegamblinghistory.htm