Beehiiv

Beehiiv is a newsletter platform that offers a comprehensive suite of tools for content creators, aligning well with the concept of an online publishing platform. It provides a rich text editor for creating newsletters, supports membership monetization through paid subscriptions, and offers detailed analytics for reader engagement metrics. While it focuses on newsletters rather than general long-form articles, the core functionalities for content creation, distribution, and monetization are present. It also includes features like user profiles, tags/topics, and email newsletter integration, which are strong matches for the 'other' features. The 'distribution-and-recommendation-engine' is not explicitly stated as an algorithmic feed for content discovery beyond its own 'Recommendation Network' for publications, which is a slight deviation from the original concept's broader scope. However, the overall alignment with content creation, audience engagement, and monetization is very high.