| Pandia Powersearch: List of search engines and directories. Also includes a metasearch engine, search tutorial, and a free newsletter. |
| Search Engine Watch: Danny Sullivan's comprehensive coverage of the search engine world. Forums, reviews, articles, ratings, and frequent newsletters. Paying members receive access to extra content. |
| Age of Dot Com: Links to search resources including start pages, integrated search forms, portals, engines, guides, and directories. Offers both a simple links page and a directory with descriptions and ratings. |
| Aleph Search: A directory of directories. Links to selected information rich web resources, both unspecialised and specialised, with a strong emphasis on United Kingdom based sites. |
| Big Search Engine Index: Directory listing hundreds of search engines, categorized, described and rated. |
| Complete Planet: Directory of databases and specialty search engines from Bright Planet. |
| CyberTimes Navigator: The starting point that New York Times reporters and editors use for their explorations of the Web. A straightforward list of some of the best sources on the Web for all types of information. |
| Direct Search: Gary Price's compilation of links to the search interfaces of resources that contain data not easily or entirely searchable/accessible from general search tools. |
| Fetchfido: A graphical interface of links to search engines. Multi-layered, with universal, United Kingdom, United States, European and worldwide sections. |
| FinderSeeker: Find the search engine you want by selecting a thematical category and/or country, or search by keyword. |
| FTP Search Engines: Rated links to ftp and mp3 search sites. |
| Geniusfind: Categorizes thousands of the most useful topic-specific directories and databases, with descriptions. |
| Indexing the Internet: An essay by John Hubbard analyzing the question of what is the best way to index the Internet, with references. |
| ISEDB: A directory of search engines and directories worldwide, organized by geographical area and subject, includes articles on site submission, marketing, and optimization. |
| Search Ability: A guide to directories of specialized search engines. Each directory is reviewed and classified in some detail. |
| Search Engine Colossus: Directory of hundreds of search engines, organised by country and topic. |
| Search Engine Relationship Chart: Bruce Clay's pictoral view of how search engines provide data to partner engines and directories. Requires Acrobat Reader. |
| Search Engine Showdown: A user's guide to Web searching with features, comparative analysis, strategies, discussion, news and reviews. |
| Search Engines Worldwide: Search engines sorted by geographical location. |
| Search Tools for Web Sites and Intranets: Provides information, news and advice about web site searching technology. Includes a guide, search tools list, glossary, and opportunity to compare searches of its own site by different tools. Offers a free monthly email newsletter. |
| Searchenginez: Search forms for the most effective engines in dozens of categories from Robert Skelton. Includes reviews, ratings, webmaster tools, and tutorials. |
| The Ultimate Search Engine Links Page: A directory of search engines: general, metasearch, pay-per-click, children's, subject, country and people search. All are described and can be rated. |
| Those Dark Hiding Places: The Invisible Web Revealed: Librarian Robert J. Lackie provides annotated links to directories, searchable sites, databases, and search engines useful for uncovering content that the general search engines fail to disclose. |
| Topix: Search Engines News: News on the search engine industry continually updated from thousands of sources around the Net. |