AlltheWeb - based in Norway, this search engine claims to index more pages than Google, boasting a database of 2.1 billion pages.

AltaVista - now includes a directory of categories.

Ask Jeeves - just ask a question in plain English.

BBC Search - a new internet search engine from the BBC. Claims to be 'family-friendly', advert-free and gives priority to UK web sites.

Citeseer - searches scientific journals and documents.

Clusty - the clustering search engine.

Cool4kids.com - thousands of links to sites that will appeal to youngsters.

Debriefing - meta search engine.

Dogpile.com - search all the other search engines.

Espotting.com - a new search engine which promises to find what you are looking for faster than ever, to show only web sites most relevant to your inquiry and to filter out any online shops which only sell goods in the U.S.

Galaxy - serious searches, relevant results.

Gigablast - search the web from a different angle. Go on, blast it!

GO.com - widely used search portal which offers many categories, has many advanced features including Express Search -- a free downloadable metasearch utility.

Google.com - simple, very powerful, and with some excellent features.

Google Scholar - enables you to search specifically for scholarly literature, including peer-reviewed papers, theses, books, preprints, abstracts and technical reports from all broad areas of research. Use Google Scholar to find articles from a wide variety of academic publishers, professional societies, preprint repositories and universities, as well as scholarly articles available across the web.

HERO (Higher Education Research Opportunities) - general search engines, subject-oriented search engines, and additional information about search engines, their use, and how they find resources.

HotBot - has more advanced features than most, including an advanced search page which permits extreme fine tuning of your search.

Ixquick Metasearch - search all the other search engines.

KartOO - a new and revolutionary type of search engine that brings your Internet searches to life with a colourful, interactive map of the results.

KillerInfo - every search automatically generates a Search Results Guide, which dynamically organises the search results into relevant groups. Displaying specific topics is fast and easy, and you don't have to scroll through thousands of intermixed search results or perform repetitive searches to find exactly what you are looking for.

Lycos - a full-service search portal with an impressive but slightly awkward set of advanced search features.

MetaCrawler - collects results from 12 search engines at once.

Mirago - search the web from a UK perspective - over 25 million pages on UK sites regularly indexed together with international sites of interest to UK users.

Moreover - search engine with news-specific database of 2,400 sources worldwide.

One Site - a new UK-based search engine that claims to be child-safe.

Open Directory Project - directory containing 2.8 million pages.

Search Engine Colossus - an international directory of search engines.

Search.com - CNET Networks search engine.

Searchenginewatch.com - access to all the major search engines and more.

Scirus - search 60 million pages with this science-only web search engine.

Scrub the Web - and it does.

Search Engines - multi-search engines, directories and tools.

Splut - a fast and free directory of UK web sites.

Subjex.com - dialogue-based search engine.

Teoma - a new search engine that claims to run rings round the others.

Turbo10 - search the deep net.

Vivisimo - one of the newer metasearch engines, queries 12 engines at a time.

WebCrawler - a meta-search engine that searches the Internet's top search engines such as AltaVista, Direct Hit, Looksmart and About. With one single powerful search engine you get the most comprehensive results.

Webring - a different type of search engine and web navigator.

Wisenut - aims to generate categories that are semantically related to the words in your query.

Yahoo! - this full-service portal pioneered organisation by categories

Yahooligans! - thousands of useful links for teenagers..