The question of whether Google Scholar is the next big thing is really not answerable. After enabling Google Scholar to crawl publishers proprietary content publishers have learned Google is an unusual partner when it comes to copyright and partnership. Second, nothing is free. Third, stakeholders (researchers, students, librarians, etc.) have differing views of quality. Fourth, branding and attribution of content in a big search engine space will be difficult, and, more critically, may only be achievable collectively. Finally, it is evident that incomplete search services such as Google Scholar need an integrative strategy in order to retain value.
Available at: http://works.bepress.com/gordon_tibbitts/13/