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Subject directories may lack comprehensive coverage and can become outdated quickly as new websites emerge. Users may also find it challenging to navigate through subject directories due to unclear categorization and limited search functionality.
They are called directories and sub-directories. They also are called folders and sub-folders.
directories
What do you consider a 'subject' directory?
Edward Mallandaine has written: 'First Victoria directory' -- subject(s): Directories 'The British Columbia directory' -- subject(s): Directories
Martin Prince has written: 'Commercial directories of the United States' -- subject(s): Bibliography, Commerce, Directories
A search directory is an online site that helps you find websites on a specific topic. There are very general directories like DMOZ to niche subject directories and local search directories as well.
google, Bing, Alta Vista
Richard Casimir Lewanski has written: 'Subject collections in European libraries' -- subject(s): Directories, Library resources 'European library directory' -- subject(s): Directories, Libraries 'Poland' -- subject(s): Bibliography 'A bibliography of Polish dictionaries, with a supplement of Lusatian and Polabian dictionaries' -- subject(s): Bibliography, Dictionaries, Polabian language, Polish language, Wendic language 'A Guide to Polish Libraries and Archives' -- subject(s): Archives, Directories, Libraries 'Eastern Europe and Russia/Soviet Union' -- subject(s): Archival resources, Directories, Library resources
Laura A. Eales has written: 'National defense' -- subject(s): Bibliography, Technology 'List of directories of manufacturers (arranged by states)' -- subject(s): Bibliography, Directories, Manufactures
Marni Rankin has written: 'The getaway guide' -- subject(s): Directories, Guidebooks, Hotels, Resorts 'The getaway guide I' -- subject(s): Directories, Guidebooks, Hotels, Resorts
Subject directories provide a structured way to organize information, making it easier for users to navigate and locate relevant resources. They can also offer a curated selection of high-quality websites on a specific topic, helping users discover credible sources more efficiently.