• Allow you to send keyword queries to multiple search engines simultaneously and receive a compilation of results within a few seconds.
• Great starting point; although some offer phrase searching and Boolean operators, they cannot utilize the advanced features of each engine to refine your search.
• Search Engine Watch:
  Metacrawlers
  http://www.searchenginewatch.com/facts/metacrawlers.html presents a hyperlinked list of what is currently available.

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