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Data
The OA.mg database consists of 240,627,322 works, of which 36,713,328 are available with full text PDFs.
Are you interested in using OA.mg at your institution? Reach out and a member of our team will get back to you.
Here is how we compare to other database and research tools:
OA.mg stands on the shoulders of friends. We could never do this work alone, and are indebted to the sources we get our data from.
Are you interested in using OA.mg at your institution? Reach out and a member of our team will get back to you.
Here is how we compare to other database and research tools:
Name of Database | Number of Works | Number of full-text PDFs | Cost | Parent Company |
---|---|---|---|---|
OA.mg | 240,627,322 | 36,713,328 | Free | OA.mg |
Semantic Scholar | 203,000,000 1 | 8,100,000 | Free | Allen Institute for Artificial Intelligence |
CORE | 207,000,000 2 | 9,800,000 2 | Free | Open University |
Internet Archive Scholar | 124,280,808 3 | 32,073,200 3 | Free | Internet Archive |
Unpaywall | 32,696,938 4 | Free | OurResearch | |
Web of Science | 193,000,000 5 | $100,000+ 7 | Clarivate Analytics | |
Scopus | 87,000,000 6 | $100,000+ 7 | Elsevier | |
Dimensions | 129,329,309 8 | 39,036,117 8 | $23,000+ 9 | Digital Science & Research Solutions Ltd |
1 Fetched on August 12, 2022 from semanticscholar.org/product/api
3 Fetched on August 12, 2022 from fatcat.wiki, the data provider for Internet Archive Scholar.
4 Fetched on August 12, 2022 from unpaywall.org
5 Fetched on August 12, 2022 from clarivate.libguides.com/librarianresources/coverage
6 Fetched on August 12, 2022 from elsevier.com/solutions/scopus/how-scopus-works/content
7 It’s difficult to accurately find the cost of Web of Science and Scopus.
Here is what we do know:
The Texas A&M University pays $212,000 for Web of Science and $140,000 for Scopus.
They had 242,331 searches for WoS (=$0.88/search) versus 69,134 searches for Scopus (=$2.02/search).
See their report here
Arizona University paid around $170,000 for Web of Science.
120,907 searches were done on Web of Science at Arizona University, at a cost of $1.74 per search.
See here
Here is what we do know:
The Texas A&M University pays $212,000 for Web of Science and $140,000 for Scopus.
They had 242,331 searches for WoS (=$0.88/search) versus 69,134 searches for Scopus (=$2.02/search).
See their report here
Arizona University paid around $170,000 for Web of Science.
120,907 searches were done on Web of Science at Arizona University, at a cost of $1.74 per search.
See here
8 Fetched on August 12, 2022 from dimensions.ai
9 Like with Web of Science and Scopus, it’s hard to find pricing online for Dimensions. This number is from gov.uk
OA.mg stands on the shoulders of friends. We could never do this work alone, and are indebted to the sources we get our data from.