Web 2.0 technologies have changed the way that individuals interact with the World Wide Web. Their experiences have become much more interactive and they are able to take ownership of content in ways that were not previously possible. The technologies that are facilitating these interactions are:


  • Blogs are websites designed to allow users to easily share content on the Web. They are arranged in reverse chronological order and allow visitors to interact with the content of the various postings.


  • Mashups are Web applications that aggregate data from different websites, recombining it to provide new interfaces or services.

Photo Sharing Sites

  • Photo sharing sites allow users to upload and distribute digital images in a shared environment.

Podcasts and Downloadable Video

  • A podcast is a digital recording of audio or video content which is distributed over the Internet by a syndicated download to portable media players and personal computers. Downloadable multimedia is content that can be downloaded directly from a website to personal computers and other devices.

RSS and Newsreaders

  • Web feeds include a suite of XML standards that allow content providers to push their content out to their users as syndicated, or RSS, feeds.

Social Network Services

  • A social network service enables the creation of online communities of individuals who share common interests or activities.

Tagging and Folksonomies

  • Tags are non-hierarchical terms or keywords assigned to a piece of information by individuals to enable them to find that information again. Tags may be created by an individual or they may be assigned by an individual from a list of predefined terms or keywords.


  • Wikis are collaborative websites that are designed to allow users to add or modify content.