
From a forum engine older than the iPhone to a fresh crop of venture-backed startups, a whole industry now sells institutions the same promise - a home for their people that no algorithm can take away overnight.

Uscreen, Bevy, Almabase, Personify, Zendesk and Gradual are all selling the same promise - a place to gather your people - and quietly disagreeing about who those people actually belong to.

Almabase, Hivebrite, Gravyty, Zapnito, Threado, Khoros and a pack of forum-software veterans are all selling one promise - a place your people gather that you actually own. The market got crowded, then it started eating itself.

Zapnito, Almabase, Disciple, XenForo, Gainsight and CMNTY are quietly selling brands a way to own their audience instead of renting it from a feed. Here is how one market splits into six very different bets.