http://www.library.gatech.edu/search_locate/wag_the_dog.html
Bookmarklet for Google Scholar, Scirus and Pubmed. Works also for databases with pages that contain ISBN, ISSN or DOI. Links are generated that point to the local link resolver (of Georgia Tech in this case).
See also http://dilettantes.blogspot.com/2005/04/countdown-to-wagging.html
WAG stands for Windsor-Alberta-Georgia, see http://gslocal.sourceforge.net/