SlackSlack - What Slack's invite flow teaches us about viral growth 深入瞭解 Slack 的產品主導增長機制Slack - The power of empty states how Slack drives user activation 空狀態設計四型別Slack+Notion+Canva - (3 excellent B2B SaaS paywalls from Slack, Notion & Canva) 3種一流的B2B SaaS定價頁面案例
