Metasearch Engines
What is a metasearch engine? Basically, it's a search engine that goes out and retreives search results from a multitude of other search engines. Here's a few good 'uns for you:
All In One Search Engine Meta-Interface: There's a mouthful for you. MrSapo is a search engine aggregator of sorts; you can use it to search through over 150 search tools without having to go to every single site.
Dogpile: Dogpile is a great way to compare and compile results from many different search engines and directories at the same time.
Clustered Results: Clusty adds a bit of extra search engine goodness in the mix by giving you clustered results; plus the retro logo is awesome.
ZapMeta: Learn more about ZapMeta, a great meta search engine that delivers fast, relevant results with plenty of extra search features, such as Quick View, results snapshot, and advanced relevance filtering.
Mamma.com: Read my profile of Mamma.com, a meta search engine with lots to offer the serious meta search user.
CNET's Search.com: Search.com is one of best meta search engines that I've come across. Not only does Search.com offer you the standard meta search experience of retrieving results from multiple search engines, they also offer mini-meta search engines on a variety of specific topics; anything from Blogs to Gaming to Business.
And even more metasearch engine goodness: Check out more metasearch engines and pick one that fits your style.


all search engine which are mentioned here are very good. but how you guys left the meta search engine http://www.infoox.com
having more option than all of these search engine and best of all it has a option belong to Wikipedia. you guys use that and will feal the difference