Boolean searching is the traditional way to search for information in most online databases and on the Internet.
To perform a Boolean search, use connectors (called operators) like AND, OR and NOT.
AND retrieves records that contain ALL of the search terms. For example, cooking AND Spain, business AND ethics.
OR retrieves records that contain ANY of the search terms, but does not necessarily include all of them. For example, theater OR theatre, www OR world wide web.
NOT excludes records containing the second search term. For example, java NOT coffee, Clinton NOT (William OR Bill).
Think of it like this, AND /INCLUDE; OR/ BROADEN; NOT/ EXCLUDE
Evaluate your selection before using:
4. Content Quality?
Purdue OWL: Searching the World Wide Web
Provides information on the different ways of locating material on the Web including using search engines, searching the invisible Web, and using Web directories.
Invisible (or Deep) Web information, from UC Berkeley
Explains why 'typical' Internet searches don't search the whole Internet...and what you can do to access the invisible web.
Do you use Wikipedia? This site will tell you why it is not a good source for your research projects.
What Happens on the Internet Stays on the Internet
The last three letters of any domain name is its suffix. Suffixes are categories of Internet domain names that serve to describe the type of company, organization, or other category that is represented. This becomes significant when doing your research as it might indicate bias or emphasis that isn’t suitable.
Commonly used domain names: do YOU know what they signify?