Resource links also known as Unified Resource Links (URL's), bookmarks, hyperlinks etc. located in a category hierarchy. The resource links are used to navigate on the world wide web, on a local machine, on the internet, or on an intranet. A method of assessing a users competence in a category in the category structure comprising the steps of analysing the users interaction with the resource links placed in the hierarchy table for that category and extracting a competence level for the user in that category.