Indexing and Information Retrieval in the SBIG: Evaluation of Websites Gateway

Apart from search engines, which claim to cover all areas of knowledge, there exist "gateway" sites produced by specialists in particular fields. Librarians and information specialists were the first to compile this kind of site. They attempt to structure Web content by providing validated links to the most interesting or useful resources in a given field. The cataloguing of the SBIG (subject based information gateway) is based of the cataloguing of classification of libraries