Internet Search Engines
http://www.library.cornell.edu/olinuris/ref/searchengines.html

Use web portals, search engines, blogs, or Internet subject guides to find resources on the World Wide Web on your topic.

• Tool Kit for the Expert Web Searcher
  This ALA sponsored site directs academic users to the best resources for web searching. Resources are listed by categories such as subject guides, search engines, news searching, metasearch engines, global searching, multimedia searching, the invisible web, and search engine news

• Search Engine Tutorials
  This page by Search Engine Watch provides a guide to better web searching.

• Choose the Best Search for Your Information Need
  Suggestions for selecting web search engines.

• Deep Web (or Invisible web) is the name given to pages on the World Wide Web that are not indexed by most commonly known search engines. It includes web pages that are not linked to from regular web pages and sites that require registration or a paid subscription. Most of the web resources listed in the Library's databases, including the Library Catalog, Find Databases, Find Articles, and Find E-Journals are part of the Deep Web.