Do you use sites such as these for
academic purposes?
Google
  OR  Wikipedia OR
Ask Jeeves
  OR 
Yahoo

These search engines are NOT SUITABLE for academic work because the published material is not peer reviewed or scrutinised for quality . (Anybody can publish anything on the Internet)

Use any of the following websites for your research

The following websites have been checked by university librarians as suitable sources for students. These services will provide links to selected resources that have been examined on your behalf for high quality and usefulness.
    Approved Websites for Health Related Internet Searches
Uni4U
A service of the U.S. NATIONAL LIBRARY OF MEDICINE
and the NATIONAL INSTITUTES OF HEALTH

The National Library of Medicine, a part of the National Institutes of Health, created and maintains MEDLINEplus to assist you in locating authoritative health information.
MEDLINEplus pages contain carefully selected links to Web resources with health information.

Uni4U
Department Of Health
http://www.dh.gov.uk
Here you will find the latest on the Department's work, as well as health and social care guidance, publications and policy.
Uni4U
Intute is a free online service that helps you to find the best web resources for your studies and research. Can also help you develop your Internet research skills through Virtual Training Suite tutorials, written by lecturers and librarians from universities across the UK.
Uni4U

Bandolier
http://www.medicine.ox.ac.uk/bandolier

 Bandolier is a print and Internet journal about health care, using evidence-based medicine techniques to provide advice about particular treatment of diseases for healthcare professionals and consumers.
Uni4U

Health Information Resources.
Uni4U

The Cochrane Library contains high-quality, independent evidence to inform healthcare decision-making. It includes reliable evidence from Cochrane and other systematic reviews, clinical trials, and more.