An easy to use resource for starting your research. Provides background information from dictionaries and encyclopedias on a wide array of topics ranging from Art to Technology. Wiki alternative
Contains the full texts of thousands of scholarly and reference e-books from several publishers, covering many subject areas.
For natural phrases such as Ohio River, be sure to use quotations.
Example: "Ohio River" and History
To limit to authoritative websites, choose your preferred domain (.edu, .gov or .org) by adding site:.domain
Example
site:.org to your search.
Be sure not to include any spaces between site: and the domain.
"Ohio River" and History site:.org