He wants some statistics on internet filth in order to convince some of his friends
Question

Some of my friends have introduced the internet into their homes, where their children and wives have access to it in this permissive land in which we have the misfortune of living, and they do not have any control over their children’s computers. I need some statistics and numbers that I can use to convince these brothers who perhaps cannot be convinced except through numbers. I hope that you can help me in this matter. May Allah reward you with good.
Praise be to Allah.It was narrated from the Prophet (peace and blessings of Allah be upon him) that among the Signs of the Hour is that “zina (unlawful sexual relationships) will become widespread.” (Narrated by al-Bukhaari, 1/178). According to a report narrated by al-Haakim, “immorality will become widespread.” During the internet age in which we are living, this hadeeth has become true, and we see the reality of the events foretold by the Prophet (peace and blessings of Allah be upon him). No one can deny this except one who is arrogant. The kaafirs recognized the seriousness of the matter before the Muslims did. Now on the internet there are half a million pornographic sites displaying immorality, and another 100 new sites are added every day, spreading nakedness and immorality in the world. 
The ratio of pornographic pages on the internet is almost 2.3% of all internet pages. (See the research web page  http://www.minshawi.com/gadhi.htm) 
The pornographic company Playboy claims 4.7 million visitors to its website each week. (See the research web page   http://www.minshawi.com/gadhi.htm) 
Purchases of “permissive items” on the internet in 1999 accounted for 8% of all electronic sales which totalled $18 billion. The amount of money spent on entering pornographic pages reached $970 million, and is expected to rise to $3 billion in 2003. (See the research web page  http://www.minshawi.com/gadhi.htm) 
Some companies have studied the number of visitors to pornographic web sites on the internet. The WebSideStory company found that one of the pornographic sites received 280,034 visitors in one day; there are more than one hundred similar sites that receive more than 20,000 visitors each day, and more than 2000 similar sites that receive more than 1400 visitors each day. Just one of these sites had received more than 43,613,508 visitors in two years. One of the people behind these sites claimed to have more than three hundred thousand nude pictures which he had distributed more than one billion times. Researchers at the Carnegie Mellon University undertook a statistical study of 917,410 pictures which were accessed 8.5 million times from 2000 cities in 40 countries, and they found that half of the pictures accessed via the internet were pornographic, and that 83.5 of the pictures circulated amongst newsgroups were pornographic. (See the research web page  http://www.minshawi.com/gadhi.htm) 
So tell these friends of yours that whoever gives his family and children free access to the internet without blocking the evil from them is a sinner and is betraying the trust, and he will be questioned on the Day of Resurrection about his negligence. And Allah is the Source of strength.