The University of Michigan offers this reproduction of Bronson Alcott's work as part of their Making of America series. A search feature allows users to search using boolean operators or a proximity search as well as more basic keyword.

This site provides the full text (English translation) of all Vincent van Gogh's letters, complete with "doodles." Search by topic, or by keyword.

This photographic collection has over 2,000 images of American landscapes and architectural features built during the period 1850-1920. You can search by keyword, subject, by name, or by state.

Journalists are inundated with acronyms. This site contains 240,000 of them and their meanings. Search tool allows you to enter the exact acronym or the first letter. You can even enter a keyword and look for acronyms that include it....

An online e-journal for archaeology. Search by title keyword, issue number, or simply browse the latest issue for current reliable archaeological information. Includes citations and bibliographies.

Information on sites from around the world that are significant to the world's different faiths and religions. Organized into drill-down directories by country and category, but you can also search by keyword. Great photos plus a whole...

This impressive exhibit of images and videos is available to see how NASA uses technology to track the weather. You can search by keyword for more specific images.

Browse samples from this collection of kids proverbs from India or search by keyword.