Citation analysis strategies
A new article in Biomedical Digital Libraries provides an initial analysis of Web of Science, Scopus, and Google Scholar for citation tracking in oncology and condensed matter physics. In the study, each tool contributed unique results and authors concluded that none of the resources provided a complete picture of citation patterns on its own.
--Bakkalbasi N, Bauer K, Glover J, Wang L. Three options for citation tracking: Google Scholar, Scopus and Web of Science. Biomed Dig Libr 2006, 3:7.