11 startups in this batch
In the summer of 2006, the startup world was obsessed with the transition to Web 2.0, focusing on user-generated content and the social graph just as Facebook opened to the public. YC was funding a cohort of founders building for a desktop-first world, leveraging Flash and early AJAX to move beyond static pages into interactive, real-time social experiences. This was the era of social discovery and the birth of the participatory web.
This batch proved that users were hungry for collaborative creativity and synchronous social interaction, ranging from multi-user music remixing to real-time social gaming. They validated that social mechanics—like polls, personality quizzes, and casual games—could drive massive viral growth and high engagement. These startups demonstrated that consumer attention was shifting toward platforms where the users themselves were the primary creators of value.
Many ventures in this cohort eventually struggled because they were built on fragile platform dependencies, particularly Flash and early social APIs that didn't survive the pivot to mobile. They often achieved high engagement but lacked a utility-based moat, proving that novelty-driven social apps are highly susceptible to user fatigue. A builder today must ensure their product provides persistent value beyond the initial social hook.
A solo builder can now use Generative AI to resurrect the "collaborative remixing" and "social polling" concepts of 2006 with a fraction of the overhead. While Jamglue required manual audio editing, AI enables autonomous creative agents that can generate hyper-personalized media based on social prompts. The wedge today is building AI-native social tools that lower the barrier to creation from "remixing" to "prompting."