The invention of the World Wide Web spurred both commercial and non-commercial distribution of pornography.The rise of pornography websites offering photos, video clips and streaming media including live webcam access allowed greater access to pornography.
One recent entry into the free pornography website market are Thumbnail gallery post sites.
These are free websites that post links to commercial sites, providing a sampling of the commercial site in the form of thumbnail images, or in the form of Free Hosted Galleries—samplings of full-sized content provided and hosted by the commercial sites to promote their site.
Children born in the 1980s onward are also the first to grow up in a world where they have access to the Internet beginning in their teenage years, and this early exposure and access to Internet pornography may be the primary driver of the increase.
The sex and tech conference series Arse Elektronika dedicated their 2007 conference to what they call pr0nnovation.
As a rule, these sites sort thumbs by category and type of content available on a linked gallery.