- World Wide Web : A global collection of information presented in the form of documents hosted on networked computers and available to the public.
- Cascading Style Sheets : A format designed by the W3C for describing the presentation, layout and other design choices of a document on the Web.
- HTML : A set of tags for marking up the content of a web page into distinct sections.
- HTTP : Network protocol on which the World Wide Web is based.
- Hypertext : A means of combining human-readable information with metadata about the information, with special reference to the ability to "link" or "jump" to subjects of interest; invented by Ted Nelson at Project Xanadu in the 1960s and first deployed as Apple Computer's product, Hypercard; ancestor of the Hypertext Markup Language and the World Wide Web
- Resource Description Framework : W3C standard for exchange of metadata about Web resources.
- Semantic Web : Tim Berners-Lee's concept of a "web of knowledge", whereby web-based document contents would be annotated and classified so that computers can parse the classifications and provide search results based on the semantic information (what the content means), rather than simply on matching of text strings.
- SVG : a modular XML-based markup language for describing static, interactive, and animated two-dimensional vector graphics
- XHTML : a form of web page markup language which is similar to HTML but adheres to stricter syntax rules, being based on XML
- XML : Add brief definition or description