Module 2: Web 2.0 technologies and social software


Tagging is a method of adding metadata to content which enables resource discovery. Adding key words or phrases as descriptive tags is a useful method of searching for content online and it is seen across a range of Web 2.0 platforms. The content in these platforms are created by people who want share it online so tagging enables others to find it and share.

Flickr is a popular digital photo-hosting site and makes great use of tagging so people can search and share digital photos. Assigning keyword or category labels enables us to discover what is available online.

I have been exploring the tags in Flickr and uploaded some photos for practice. As part of the module activity I have to uploaded some photos, created a photostream and then added some to the Group INF209-INF506 for sharing. This is a wonderful way to learn Web 2.0 technologies. There is much more to this online photo/video sharing site to learn.


What is Web 2.0

Note: The cloud-map picture above (constructed by Luca Cremonini on December 25, 2006, for has been recreated in svg format from the image of Markus Angermeier and was improved with links to Wikipedia sources at

Web 2.0 refers to a  new generation of web technologies that has enabled people to use the web, create content and easily publish online, to interact with one another, and to share both online and offline resources.