A roughly monthly long-form newsletter by Scott Belsky that explores the second-order implications of AI, technology shifts, culture and product design rather than covering news. Each edition offers forecasts on topics such as AI agents, enterprise software, brand moats and building product teams.

First-person stories from two early Slack insiders about building the company, product and business, including the redesign, the pandemic rollout and the Salesforce deal. Readers get behind-the-scenes accounts of product and leadership decisions.

A Substack from the founder of Sublime combining curated ideas with reflections on building human-centered products and a weekly interview series, Humanmaxxing, on thriving in the age of AI. Readers get edited interview transcripts with prominent tech writers and essays on measurement culture and creativity.

A two-person team building a private, small-group social network called the nook, documenting design decisions like group size limits, passwordless passkey login, and why they want a shared place rather than a feed. Readers get candid engineering reasoning and product philosophy behind a privacy-focused alternative to mainstream social apps.