The page has been migrated to https://github.com/OpenIndiana/oi-userland/blob/oi/hipster/doc/categories-layout.md . Avoid touching this wiki page.
Currently we are moving to categories layout, like pkgsrc or FreeBSD ports. Individual components should be moved to corresponding category as they are touched. In contrast to pkgsrc we use subcategories for related components, for example, library/openssl.