This document provides 9 tips for building a strong online community for startups, including finding out who is talking about your product and on which platforms, engaging with and leveraging connections to get early advocates to discuss the product, making sharing simple through social features in the product, prioritizing quality over quantity of users, acting as a support system to build trust over time, experimenting when risks are low with a small community, tracking all community metrics, having a unique and interesting voice, and taking chances to try new things.