Medium Launches Private Note-Taking App TK to Reduce Search Engine Dependency

Medium has launched TK, a private note-taking application designed to function as a hybrid between journaling and a private social network. The tool marks the company's most important release since 2017, according to CEO Tony Stubblebine. That year, former CEO Ev Williams shifted the business from an advertising model to a subscription-based system. Stubblebine stated that this earlier move allowed the company to distance itself from the attention economy, a trend he noted has only accelerated in recent years.

The new platform addresses a specific challenge facing content creators: the rapid consumption of web content by artificial intelligence companies and the decreasing traffic from search engines and chatbots. Medium relies heavily on Google for user referrals. Stubblebine identified this dependency as an existential risk in an era where search results often provide direct answers without linking to source pages. He proposed moving blogging underground, away from public search indexes, to mitigate this issue.

TK features a minimalist interface similar to Evernote but distinguishes itself through integrated AI tools. Users can employ large language models to organize notes, search past entries, or receive feedback on drafts. The app uses the letters TK as a shortcut to summon these AI models, a choice based on the rarity of those specific letters appearing together in standard text. Stubblebine emphasized using these models to handle the administrative aspects of note management rather than the creative process itself.

A central feature of the application is the concept of Libraries, which Stubblebine defined as private blogging. These are topic-centered groups where members contribute writing exclusively for other group members. These communities can range from small circles to groups of several hundred people. Early examples include communities sharing book projects, exchanging recipes, and posting poetry drafts. The environment blends traditional blogging with group chats, removing the pressure to be noticed by a public audience.

Unlike the main Medium platform, TK does not measure pageviews or reward authors based on traffic volume. Instead, it focuses on community feedback and encouragement. Stubblebine plans to bring similar features to the broader Medium platform in the future. The app is currently available for free on the web, Android, and iOS, with a native desktop version in development.

If successful, TK could become a primary revenue stream for the company. Stubblebine envisions new monetization models, such as packaging high-quality content from specific libraries for sale to humans or AI agents. He believes the generic web is becoming less intelligent and that AI will need to be grounded in a layer of human intelligence. By keeping this content outside traditional search algorithms, Medium aims to create a more sustainable digital ecosystem.