Circular9 is a free web directory organised as a structured reference catalogue. It documents 839 submitted websites across 22 subject headings, providing a searchable record of web resources for researchers, browsers, and site operators alike.
The project began as an effort to compile a straightforward index of the open web — organized by subject rather than algorithm. Unlike automated search systems, Circular9 relies on submissions from site operators, who provide the descriptive metadata recorded in each entry. This keeps the catalogue grounded in what operators themselves consider most relevant about their services.
The 22 subject headings in Circular9 range from broad categories such as General Reference & Miscellany, which captures heterogeneous submissions, to focused specialist sections including Dental Medicine & Oral Health, Jurisprudence & Legal Counsel, and Zoological Companion Care & Veterinary Arts. Entries within each section are listed in order of submission and approval.
Submission is free and open to any operator. Submitted sites are reviewed for basic descriptive accuracy before appearing in the catalogue. The review process focuses on consistency between the submitted description and the actual site content; it does not evaluate quality, commercial viability, or editorial merit.
Circular9 does not participate in any paid placement or sponsored listing arrangements. All entries are recorded on identical terms. The directory is maintained as a reference instrument, not as a promotional platform.