Google Launches New Search Interface For "Scholarly" Literature
From the FAQ About Google Scholar:
"Google Scholar enables you to search specifically for scholarly literature, including peer-reviewed papers, theses, books, preprints, abstracts and technical reports from all broad areas of research. Use Google Scholar to find articles from a wide variety of academic publishers, professional societies, preprint repositories and universities, as well as scholarly articles available across the web."
See also from the New York Times, Google Plans New Service for Scientists and Scholars