Porn 2.0
Porn 2.0, is named after "Web 2.0", refers to pornographic websites featuring user-generated content, including social networking features such as user-based categorizing, webcam hosting, blogs and comments. This is in contrast to the static content offered by "Web 1.0" porn sites. Porn 2.0 sites may offer features similar to mainstream Web 2.0 services such as video communities, (Metacafe, Vimeo, YouTube) social sites, (Tumblr, Twitter), general blogging platforms, (Blogger, DailyBooth, Lookbook.nu) and photo hosting services (Flickr, Photobucket, Picasa).
Since their inception, Porn 2.0 Web sites have gathered great popularity, but have meanwhile encountered various legal and other difficulties. Among these difficulties are concerns about the digital content copyright, trade media, and affiliating partnership advertising. Other concerns include the idea of sharing versus privacy and the legal ramifications of large quantities of free, user-generated pornographic content on the Internet.