Scholarly Search Engines
BASE provides more than 90 million documents from more than 4,000 sources. It collects and indexes the metadata of web documents, provided via the OAI-PMH protocol. It is possible to access the full texts of about 60% of the indexed documents for free (Open Access). Some of the documents included in BASE are:
- scholarly articles
- thesis & dissertations
- Book parts
- Conference documents
- Course materials
- Musical notations
- Images & videos
Simple to search, Google Scholar is probably the most popular academic search engine. It is very similar to Google, but it focuses on academic content more than general websites. Google Scholar indexes results from several academic publishers and its results include journal articles and book citations. It can also include patents and legal information in its search.
Though Google Scholar is a great tool to find references to sources, it may not be the greatest option to retrieve full text documents, as many articles are not available for open access and need to be purchased seperately. If looking for full text academic content, refer to the library databases.
JURN is a unique search tool which helps you find free academic articles and books. JURN harnesses all the power of Google, but focusses your search through a hand-crafted and curated index. Established in 2009 to comprehensively cover the arts and humanities, in 2014 JURN expanded in scope. JURN now also covers selected university fulltext repositories and many additional ejournals in science, biomedical, business and law. In 2015/6 JURN expanded again, adding over 600 ejournals on aspects of the natural world. (description extracted from JURN FAQ)
WolframAlpha is a unique search engine, as it does not retrieve lists of results; rather, it tries to answer questions directly based on search terms. It is an interesting tool when looking for mathematical or statistical information.