Web 2.0 terms

User-generated content is refers to various kinds of media content, publicly available, that are produced by end users.

Network as platform describe network services for internet scale distributed computing.

Long tail is a retailing concept describing the niche strategy of selling a large number of unique items in relatively small quantities. Usually in addition to selling fewer popular items in large quantities.

Folksonomy is a system of classification derived from the practice and method of collaboratively creating and managing tags to annotate and categorize content.

Web syndication is a form of syndication in which website material is made available to multiple other sites.

Mass collaboration is a form of collective action that occurs when large numbers of people work independently on a single project, often modular in its nature.

Computer supported collaboration research focuses on technology that affects groups, organizations, communities and societies, examples are voice mail and text chat.
hosted services is a business that delivers a combination of traditional IT functions such as infrastructure, applications

Web applications is an application that is accessed via a web browser over a network such as the internet or an intranet.

Social-software encompasses a range of software systems that allow users to interact and share data.

Video-sharing sites allows individuals to upload video sites to an internet website.

Wikis is a website that allows the easy creation and editing of any number of interlinked web pages via a web browser using a simplified markup language or a WYSIWYG text editor.

Blogs is a type of website, usually maintained by an individual with regular entries of commentary, descriptions of events, or other material such as graphics or video.

Mashups is a digital media file containing any or all of text, graphics, audio, video, and animation, which recombines and modifies existing digital works to create a derivative work.