Abstract
The text consists of two parts. The first analyzed the internet search techniques – in a general heuristic sense and detailed i.e. specific techniques belonging to the family of query languages – so called operators (logical operators, localization operators, operators for communication channels in social media, chronometric operators, search operators in the content of the www and search operators for specific types of content). Their main function is to clarify search queries. The second part of the text contains a review and analysis of selected internet exploration tools – search engines (global search engines, search engines focusing on user privacy, metasearch engines and multisearch engines, regional search engines and catalogues, people search engines, search engines of gray literature and internet archives). Preview is not exhaustive or deepened, it serves rather the initial orientation of those interested in the search engine universe.
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