A scholarly, multidisciplinary database providing indexing and abstracts for over 10,000 publications. Offers coverage of many areas of academic study, which makes it a great place to start the beginning stages of your research.

PsycINFO is an electronic bibliographic database providing abstracts and citations to the scholarly literature in the psychological, social, behavioral, and health sciences. The database includes material of relevance to anyone interested in related fields such as psychiatry, management, business, education, social science, neuroscience, law, medicine, and social work. Updated weekly, PsycINFO provides access to journal articles, books, chapters, and dissertations.

ERIC is a Web-based digital library of free education-related sources of interest to educators, researchers, and the general public, and consists primarily of electronic bibliographic records describing journal and non-journal literature. Since ADHD affects school aged children, educational databases can be a good place to look for materials on the disorder.

Maintained by the U.S. Department of Education, the Educational Resources Information Center provides free access to more than 1.2 million citations of journal articles and other education-related materials. When available, links to full text are included.

PsychiatryOnline is a website that features the Diagnostic and Statistical Manual of Mental Disorders, fifth edition (DSM-5) and The American Journal of Psychiatry as the cornerstones of a collection of psychiatric references. This resource also includes books, journals, medication information handouts for patients, clinical and research news, self-assessment tools, and previous editions of the DSM.