Reproduced with permission from Ixquick.
search the databases of several search engines at a time (e.g.,
HotBot, Excite, Google and Yahoo).
have little control over search options.
for an overview of your topic on the Web, seeing which search engines
will produce the best results, and for simple searches.
Downside, they aren't thorough. Most metasearch engines omit
Google, which is a highly-rated search engine.
engines: Dogpile, MetaFind, MetaCrawler,
and SavySearch. See a full list here at Search