Flipboard

Flipboard is a content aggregation platform that allows users to discover and curate stories from various sources. It features a strong recommendation engine, community interaction tools like 'flipping' and sharing, and supports publishers in distributing their content. While it doesn't focus on original long-form writing with a rich text editor or direct monetization for individual writers like Medium, it excels in content distribution, curation, and reader engagement, aligning with many of the 'must-have' and 'other' features related to content discovery, sharing, and community interaction.