Portfolio81 began as a straightforward exercise in editorial curation: to take the broad, unruly expanse of the web and arrange it as a periodical would arrange its contributors — by section, by subject, by voice. The result is this index of 830 websites, each placed within one of twenty-two thematic columns. The directory spans a wide editorial range. Readers will find motoring supplements alongside culinary folios, property anthologies next to finance beats. The breadth is intentional: a good periodical serves many readers, and Portfolio81 aims to serve the researcher, the practitioner, and the casual browser equally. Submissions are reviewed before listing. The editorial standard is not stringent — we welcome working sites across all twenty-two sections — but each domain must resolve and present content appropriate to its declared section. This keeps the index readable rather than merely comprehensive. Portfolio81 is free to browse and free to submit to. There are no tiers, no featured placements, and no sponsored positions. Every listed site appears in the order it was received, within its section. The index is updated as new submissions clear review. Readers who return regularly will find the columns growing, section by section, as the web adds its own chapters to the record.