While it's hard to place an exact figure on the overall size of the online gambling industry, various estimates range from about $20 billion-$50 billion per year in revenue, with about 20,000-30,000 active sites serving customers. The online gambling industry encompasses a wide range of sites, including online casinos, sportsbooks, poker rooms, bingo parlors, lotteries, horse racing sites, and more.

With online gambling companies located and clustered in countries with friendly licensing regulations (such as Canada, Curacao, Gibraltar, Costa Rica, Belize, and Panama), the industry can be a major source of jobs, especially for smaller countries. Not only do operators hire executives, software programmers, and marketing staff, but they commonly maintain very large support staffs to be available 24 hours a day to handle customer service.

Online gambling is still considered a growth industry, and a recession-proof industry!