A perceived second generation of web-based communities and hosted services that aim to facilitate creativity and collaboration between users. The term became popular following the first O'Reilly Media Web 2.0 conference in 2004.
Building online social networks for communities of people who share interests and activities, or who are interested in exploring the interests and activities of others, and which necessitates the use of software.
Most social network services are primarily web-based and provide a collection of various ways for users to interact, such as chat, messaging, email, video, voice chat, file sharing, blogging, discussion groups.
Creative Commons (CC) is a non-profit organisation devoted to expanding the range of creative work available for others legally to build upon and share. It has released several copyright licenses known as Creative Commons licenses .
Creative Commons helps you publish your work online while letting others know what they can and can't do with your work. When you choose a license, CC provides tools that let you add license information to your own site, or to one of several free hosting services that have incorporated Creative Commons.