Abstract:Although Web 2.0 contains many tools with different functionalities, they all share a common social nature. One tool in particular, social bookmarking systems, allows users to store and share links to different types of resources i.e. websites, videos, images, etc. In order to identify and classify these resources so that they can be retrieved and shared, fragments of text are used. These fragments of text, usually words, are called tags. If a tag is found on the inside of a resource text, it is referred to as an