A recently published study shows that in 1998, in Western Europe and the United States both total of $ 1.4 billion in online spending, about 69 percent went to "adult content" sites, while paid content revenues in all online, there are about 84 percent goes to the US-based website.

The study published in the British firm Datamonitor said, "adult content" refers to the site "Web site has adult sexual content", while adult sexual content, including comments, pictures, real-time or paid on-demand video , as well as all related services and their including instant messaging account. According to Datamonitor, it said the figures did not sell e-commerce activities into account.

The study pointed out that in both the United States and Western Europe, with nearly $ 1 billion spent on "adult content" sites. In addition, $ 61 million spent in the game , the US $ 25 million spent on sports, there is $ 8.0 million spent in the music on, and $ 340 million spent in other ways. By the year 2003, "adult" site's revenue is expected to reach $ 3.1 billion, while total revenue when the entire industry of online content, but only $ 5.4 billion. While spending in other areas will remain far below the $ 1 billion mark.