Commonly used search engines offer search results with links to websites, the content of which is of varying quality, because these search engines look de facto across the whole internet. Therefore, it may happen that among the first links to websites or documents there are those of low quality, and also websites whose owners have paid for making their website appear high in the rankings.

Search engines for expert information, on the contrary, search only through research articles, expert books, websites of research institutions, etc. Therefore, in this case you can expect to find information of high quality. That is the reason why we recommend using these search engines when you are looking for expert information.