7.11) . Here is stored a huge collection of essays , reports and other works, which is regularly updated . Fig . 7.11 . website www.referat.ru One of the obvious advantages of the site over the many competing resource availability is extremely convenient Categorization , which may have a few ideas listed below (selected by setting the appropriate position ) . • By category — in this case, all available materials on the site are presented in the context of activities : architecture, biology, mathematics , medicine, economics and finance, agriculture , etc. Click selecting the desired category , you can view all available work on the topic . • The format — this view allows you to group contents of the site on the format of the data. For example , you can view a list of the presentations, or only text documents , or just animated graphics and materials , etc. • By type — this option is convenient to choose representation when you need a certain type of material : laboratory or control work , an abstract or a report , etc. For example, if you are looking for the report — select this view , then click on the link Report . As a result, you will see a list only reports ( and all sorts of control and laboratory work , term papers and dissertations from the list will be excluded) . • By language — the site contains materials created in different languages. Therefore, if you are interested in the material only, for example , German or Ukrainian language — select this view , then click on the name of the corresponding language. Also on site is an alphabetical subject authority , who also enjoy quite convenient. As the results of the research , www.referat.ru is currently one of the most visited resources of such a plan . However, it is far from unique . For example, a competing project is located at http://www.referatbank.ru ( Fig. 7.12) and a formidable base of essays , term papers, essays and reports. Fig . 7.12 .