The following is a list of notable Web directory services.
- DOAJ.org – Directory of Open Access Journals
- DMOZ (also known as Open Directory Project) – was at one point the largest directory of the Web. Its open content was mirrored at many sites. Offline since March 2017. Continued since August 2018 as Curlie.org.
- Jasmine Directory - Lists websites by topic and by region.
- Sources – general subject web portal for journalists, freelance writers, editors, authors and researchers; in addition to a search engine it includes a subject-based directory.
- Starting Point Directory – Founded in 1995, relaunched in 2006, charges a fee.
- World Wide Web Virtual Library (VLIB) – oldest directory of the Web.
- Business.com – Integrated directory of knowledge resources and companies, that charges a fee for listing review and operates as a pay per click search engine.
- Library and Archival Exhibitions on the Web – international database of online exhibitions which is a service of the Smithsonian Institution Libraries.
- ProgrammableWeb – resource on APIs that provides a directory of APIs.
- SkillsBase – Directory of skilled professionals
- Virtual Library museums pages – directory of museum websites around the world.
- 2345.com – Chinese web directory founded in 2005. The website is the second most used web directory in China.
- Alleba – Filipino search engine website, with directory.
- Dalilmasr – Egyptian online directory
- Timway – web portal and directory primarily serving Hong Kong.
- AboutUs.org – directory from 2005 to 2013.
- Anime Web Turnpike – was a web directory founded in August 1995 by Jay Fubler Harvey. It served as a large database of links to various anime and manga websites.
- Biographicon – directory of biographical entries.
- Google Directory – copy of DMOZ directory, with sites listed in PageRank order within each category. Closed in July 2011.
- Internet Public Library – librarian-edited directory, product of a merger with the Librarians' Internet Index (LII) in 2010. Closed in June 2015.
- Intute – directory of websites for study and research. Maintenance stopped in July 2011, archives remain available.
- LookSmart – operated several vertical directories from 1995 to 2006.
- Lycos' TOP 5% – from 1995 until 2000 it aimed to list the Web's top 5% of Websites.
- Yahoo! Directory– first service that Yahoo! offered. Closed in December 2014.
- Yahoo! Kids – oldest online search directory for children, until its discontinuation as of April 30, 2013.
- Zeal – volunteer-built Web directory; it was introduced in 1999, acquired by LookSmart in 2000, and shut down in 2006.
- List of search engines
- 1337x – directory of torrent files and magnet links used for peer-to-peer file sharing through the BitTorrent protocol.
- Shopping directory