There was a rapid growth in the number of posts in the early 1990s but image quality was restricted by the size of files that could be posted.The method was also used to disseminate pornographic images, which were scanned from adult magazines.
The availability of widespread public access to the World Wide Web in 1991 led to the growth of Internet pornography.
A 2015 study finds "a big jump" in pornography viewing over the past few decades, with the largest increase occurring between people born in the 1970s and those born in the 1980s.
On the Web, there are both commercial and free pornography sites.
The bandwidth usage of a pornography site is relatively high, and the income a free site can earn through advertising may not be sufficient to cover the costs of that bandwidth.
Some free websites primarily serve as portals by keeping up-to-date indexes of these smaller sampler sites.
These intents to create directories about adult content and websites were followed by the creation of adult wikis where the user can contribute their knowledge and recommend quality resources and links.On the other hand, Link Lists have a larger amount of unique text, so that helps them to improve their positions in search engine listings.Top Lists are linklists whose internal ranking of freesites is based on incoming traffic from those freesites, except that freesites designed for Top Lists have many more galleries. Another free source of pornography on the Internet are the Usenet newsgroups that were the first home to such material.At this time the internet was mainly an academic and military network and there was not widespread use of the internet.One of the early Gopher/FTP sites was at tudelft and was called the Digital Archive on the 17th Floor (List of websites founded before 1995).These sites are called a Thumbnail gallery post (TGP).