This is our largest cross-searchable ebook collection, a great place to start researching any academic topic that is not related to current events.
	Salem Health is an online database that contains the complete contents of various specialized encyclopedias related to health and disease, including many psychological disorders.
	This Science Reference Center is a database that provides access to hundreds of science encylopedias, reference books, and periodicals.
	These Gale databases cover a wide range of academic subjects, and provide magazine articles, news articles, and articles from professional journals, along with ebooks, images and more.
	SIRS Knowledge Source covers a wide variety of social issues, provides access to historic   documents, and gives current perspectives on the arts and humanities.

Timeline of American History:  http://avalon.law.yale.edu/subject_menus/chrono.asp#19

Timeline of World History: http://ehistory.osu.edu/world/timeline.cfm