Google
Google Groups, News and Media, Research Papers, Tools, Web APIs, Aaron's Photos: Trip to Google, Elgoog.nl, Empirical Analysis of Google SafeSearch, Exploiting the Google Toolbar, Froogle, Google, Google Advisor, Google and Dmoz - Are They in Love?, Google Blog, Google Catalog Search
Robots
All About Search Indexing Robots and Spiders, HTTP User Agent Index, List of Robot Agent Strings, Psychedelix List of User-Agents, Robots, Spiders and Other User Agents: a Resource , Search Engine IP Addresses, Search Engine Robots and Other User Agents
Specialized
Images, All Academic, BoardReader, FindArticles.com, FindSounds, Netcraft Web Site Finder, Phaster: Search Discussion Boards, SearchIRC, Who Built It
Amfibi
General search engine with an uncluttered interface in a choice of Catalan, English, French, and Spanish. Also has a web directory using the Open Directory.
Ask Jeeves
Uses the Teoma database to offer search for web sites, news, weather reports, pictures, stocks, people or products.
Commercial Alert Files Complaint Against Search En
A complaint filed with the United States Federal Trade Commission by Ralph Nader's Commercial Alert service, which charges the major search engines of inserting advertisements in search engine results without clear disclosure that the ads are ads.
Creative Commons Search
Powered by Nutch, it searches content which can be re-used (for somes uses) without having to pay or ask permission.
Entireweb
The English-language version of a Swedish search engine with a clean interface and large database.
Gigablast
A search engine with a clean interface, advanced search options including sorting by date, and a real time url submission feature. Includes PDF documents in its index.
MSN Search
Miscroft provides search of the web, news, images and its own encyclopedia, Encarta. Also offers desktop search via a toolbar.
NPR : The Search Engine Wars
In a five-part series, NPR's Rick Karr takes a look at the business of search engines.
Objects Search
An uncluttered interface offers options to search the web, news and blogs, includes cached pages and 'anchors', which are titles and descriptions from the Open Directory.
Pipeline
A clustering engine with a streamlined interface, which presents all results in one column and clusters by topic in another.
Scrub The Web
Search engine with sponsored links at the top of results. Also offering a meta tag builder and analyzer.
Search Engines and Editorial Integrity
Article from the USC Online Journalism Review examines the issue of major search engines adopting deceptive, misleading advertising practices at the expense of editorial integrity and their users.
SearchHippo
Indexes the sites listed in the major Internet directories. Offers free web services, including a search toolbar, and code for webmasters to provide search boxes on their sites.
Teoma
Ranks sites partly by subject-specific popularity. Clusters results into subject groups, and lists related link collections by experts and enthusiasts where appropriate.
The Evolution of Web Searching
David Green's paper from Online Information Review explores the development of search engine technologies.
Topix.net: Search Engines
News about search engines, collected from various sources on the web.
WiseNut
Owned by Looksmart. Search results are clustered into categories. Preferences settings include search by language and a filter to remove adult content.
Wotbox
Search engine with country specific searching. Options to display country flags, and include preview and translation features. Sponsored links appear in panels separate from the main results.