Search tools either directly provide access to the information source you need (full text publication) or provide information to help you find a source (i.e., a citation). Unfortunately, there is not just one tool for all sources.

Google is a search tool, but it is not the only one. Some examples of search tools you will use for identifying print and/or electronic sources are:

Library Catalogs for identifying books and other library materials
Databases for identifying journal articles
Web Search Engines (including Google) for identifying Web sites

This section will review various search tools, beginning with an introduction to the Open Web vs. the Deep Web.