Internet Pornography statistics become outdated very quickly, especially in the Internet environment where numbers change daily. These statistics have been derived from a number of different reputable sources including Google, WordTracker, PBS, MSNBC, NRC, and Alexa research.

Cited from: http://www.mykidsbrowser.com/pornography_stats.php

Pornography Industry Statistics
	Size of the Industry $57.0 billion world-wide – $12.0 billion US     Adult Videos $20.0 billion     Escort Services $11.0 billion     Magazines $ 7.5 billion     Sex Clubs $ 5.0 billion     Phone Sex $ 4.5 billion     Cable & Pay Per View $ 2.5 billion     Internet $ 2.5 billion     CD-Rom $ 1.5 billion     Novelties $ 1.0 billion     Other $ 1.5 billion Porn revenue is larger than all combined revenues of all professional football, baseball and basketball franchises. US porn revenue exceeds the combined revenues of ABC, CBS, and NBC (6.2 billion) Child pornography generates $3 billion annually
Children’s Exposure to Pornography
	Average age of first Internet exposure to pornography 11 years old Largest consumer of Internet pornography 12-17 age group 15-17 year olds having multiple hard-core exposures 80% 8-16 year olds having viewed porn online 90% (most while doing homework) 7-17 year olds who would freely give out home address 29% 7-17 year olds who would freely give out email address 14% Children’s characters linked to thousands of porn links 26 (including Pokeman and Action Man)
Adult Internet Porn Statistics
	Men admitting to accessing pornography at work 20% US adults who regularly visit Internet pornography websites 40 million Promise Keeper men who viewed pornography in last week 53% Christians who said pornography is a major problem in the home 47% Adults admitting to Internet sexual addiction 10% Breakdown of male/female visitors to pornography sites 72% male – 28% female
Women and Pornography
	13% of Women admit to accessing pornography at work. 70% of women keep their cyber activities secret. 17% of all women struggle with pornography addiction. Women, far more than men, are likely to act out their behaviors in real life, such as having multiple partners, casual sex, or affairs. Women favor chat rooms 2X more than men. 1 of 3 visitors to all adult web sites are women. 9.4 million women access adult web sites each month.
Internet Porn Statistics
	Pornographic websites 4.2 million (12% of total websites) Pornographic pages 372 million Daily pornographic search engine requests 68 million (25% of total search engine requests) Daily pornographic emails 2.5 billion (8% of total emails) Average daily pornographic emails/user 4.5 per Internet user Monthly Pornographic downloads (Peer-to-peer) 1.5 billion (35% of all downloads) Daily Gnutella “child pornography” requests 116 thousand Websites offering illegal child pornography 100 thousand Sexual solicitations of youth made in chat rooms 89% Youths who received sexual solicitation 20% Worldwide visitors to pornographic web sites 72 million annually