Google Search with a Colon: Set up your search with a colon to search specific website domains. For example, if you type site:edu then your search terms or site:gov then your search terms into the Google search bar, the search results will only come from .edu sites such as universities and schools or .gov sites such as U.S. government agencies and institutions.
Strategic keyword searching is also important with Internet research. For ideas watch this Using Keywords video from the University of Houston Libraries.