Social is the district of products that people talk on: networks, forums, group chat, dating, and the small independent communities that replaced the big ones for a lot of people. The line between social and community in this taxonomy is whether the site is the product or belongs to a group; a Discord server's landing page lives in community, the Discord homepage lives here.
These are the most-viewed squares in town relative to their number. Visitors recognise the icons, open the cards, and kiss them — and a kiss is public, so a social product's popularity contest continues here in miniature.
A community that wants its own square, rather than the platform's, will find the how-to at Square Town for communities.