The usage of electronic resources depends on good possibilities of searching and the Semantic Web concept can be convenient solution for information retrieval (IR). WWW (World Wide Web) enables, with the help of search engines and huge number of available (meta)information, data that can satisfy user's need for information, but only at some extent. At the same time, there are more and more research efforts to increase the efficiency for IR until one gets as much as possible relevant information on the Web. As one of the latest results of this W3C efforts, Semantic Web presents a group of organized technological standards, IT products, and information linked in such a way that can be easily indexed and semantically filtered through the process of classification on the global scale. Semantic Web and its principles make IR easier because it can be also observed as very useful and successful way of representing data on the WWW or as a group of globally linked databases. The architecture of Semantic Web consists of three important IT standards: XML (eXtensible MarkUp Language), RDF (Resource Description Framework) and the ontologies. Semantic web is still under development and is not in common usage but it promises that it will radically improve the possibility of searching, sorting and classification of information.