As explained in the last feature of the week, BibSonomy allows users to structure the content via SUPERTAG <- SUBTAG relations. The built tag concepts are available for searching and navigation through our folksonomy system. As seen in the figure above it is ease in handling, whereas each step is symbolized with a circle. Only choose “concepts” (step 1) as search option and type a tag which your are interested in (step 2). In the last step (step 3), you get resources and a visual presentation of your concept as hierarchy. Miranda