Below is an alphabetical listing of the major metasearch engines. A metasearch engine is a special search tool which lets you search several search engines at once and lists the top results from all of them, often ranking them in some way. Please note that some of the metasearch engines in the list below display their own paid listings along with the search results from other search engines.

Clusty - Metasearch engine that makes use of clustering technology.

Debriefing - Metasearch engine powered by Ixquick which prioritizes results according to their respective rankings in the search engines. Accepts paid listings also.

Dogpile - Popular metasearch engine owned by InfoSpace. The Advanced Search page lets you specify additional search criteria. Also offers paid inclusion.

Excite - A Web portal and metasearch engine powered by InfoSpace. Offers paid inclusion also.

ez2find - Global metasearch engine that queries the major search and lets you instantly translate the results into several languages. The advanced search feature lets you search over 1,000 specialized resources, organized by category.

Fazzle - Metasearch engine with a customizable interface. Also accepts paid listings.

Info.com™ - Metasearch engine that displays results from 14 different search engines.

Ithaki - Global and localized metasearch engine, available in several languages. Offers country-specific search, letting you query local search engines rather than just regional versions of the major search engines.

Ixquick - Metasearch engine that ranks results based on the number of "Top 10" rankings a site has achieved in various search engines. Also accepts paid listings (you can "rent" a given keyword or keyword phrase for a year for one flat price).

Kartoo - Multilingual metasearch engine that which represents search results visually using interactive "maps".

Mamma - Metasearch engine which queries many of the major search engines plus specialized search engines. Accepts paid listings.

MetaCrawler - Metasearch engine powered by InfoSpace. Also accepts paid listings.

Pandia Metasearch - Metasearch engine that lists results from the major search engines and directories first, followed by a link to additional listings from other search engines.

ProFusion - Metasearch engine that shows the search engine and corresponding ranking for each result.

Search.com - CNET's Search.com searches dozens of major and specialized search engines. Lets you search by topic and has Advanced Search features.

SurfWax - Metasearch engine that lists results and also shows how many pages were found in each search engine. Accepts paid listings as well.

Turbo10 - Metasearch engine which accesses both traditional Web search engines and "Invisible Web" (specialized) databases. Also accepts pay-per-click listings.

Vivisimo - Metasearch engine that returns "clustered results" (listings organized by category) and lets you search by keyword within those clusters.

WebCrawler - Metasearch engine powered by InfoSpace. Offers paid inclusion as well.

WebSearch - Metasearch engine that lists results by search engine. Also accepts paid sponsor listings.