Googling For Academic Medical Research

Google has announced and is online (beta version) with an academic search engine called "Google Scholar" - which "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."

http://scholar.google.com

About Google Scholar
http://scholar.google.com/scholar/about.html

Google Scholar FAQs
http://scholar.google.com/scholar/about.html#faq