Databases for Citation Searching

Dana L. Roth. (2005) The emergence of competitors to the Science Citation Index and the Web of Science. Current Science 89(9):1531-6 (10 November 2005)

1. Chemical Abstracts / SciFinder / SciFinder Scholar
2. NASA Astrophysics Data System Abstract Service
3. Amazon.com's 'Search Inside this Book' program
4. Scopus
Judy F. Burnham. Scopus database: a review. Biomedical Digital Libraries 2006, 3:1.
5. Scitation / Spin Web
6. PROLA (Physical Review Online Archive)
7. Citation Bridge (U.S. Patents)
8. U.S. Patent and Trademark Office
9. Google Scholar
10. Optics InfoBase
11. CiteSeer
12. Science Direct
13. PsycINFO
14. IEEE Xplore
15. Spires HEP
16. IOP (Institute of Physics)
17. CrossRef