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Easy to use. |
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Less easy to use. It takes some time to find out how a database works. |
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Limited search functionality. Enormous number of results and unsatisfactory options to filter results. Hence not much control over your search. |
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Extensive search functionality. Compared to Google Scholar: a manageable number of results for a similar search. Many advanced filter options. Hence greater control over your search. |
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Compiled by a web crawler that searches only the Surface Web. |
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Compiled by humans; materials come from the Surface Web and the Deep Web |
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No helpful extra information (e.g. topical terms such as subjects/descriptors/keywords) is assigned to documents. |
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Extra information is assigned to documents (e.g. subjects/descriptors/keywords) by subject specialists. |
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Google Scholar's crawlers can be fooled, resulting in unreliable information being indexed (e.g. articles from predatory journals). |
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Only credible documents are included. People can't be fooled! |
