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, specializing in business websites.
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.
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.
Yell – is a digital marketing and online directory business in the United Kingdom
Niche
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.
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.