Age of Dot Com
- http://www.ageof.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
- http://www.alephsearch.co.uk/
- A directory of directories. Links to selected information rich web resources, both unspecialised and specialised, with a strong emphasis on United Kingdom based sites.
Alt Search Engines
- http://altsearchengines.com/
- Charles Knight maintains a list of the top 100 alternative and niche search engines. Includes news, reviews and debates on search engines.
Direct Search
- http://www.freepint.com/gary/direct.htm
- 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.
ISEDB
- http://www.isedb.com/
- A directory of search engines and directories worldwide, organized by geographical area and subject, includes articles on site submission, marketing, and optimization.
OpenSearch
- http://www.opensearch.org/
- A collection of simple formats for the sharing of search results. Includes specifications and frequently asked questions.
Search Engine Watch
- http://searchenginewatch.com/
- A guide to search engine marketing and search engine optimization. Forums, reviews, articles, ratings, and frequent newsletters. Paying members receive access to extra content.
Search Tools for Web Sites and Intranets
- http://www.searchtools.com/
- 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
- http://searchenginez.com/
- Search forms for the most effective engines in dozens of categories from Robert Skelton. Includes reviews, ratings, webmaster tools, and tutorials.