This chapter explores the potential of the novel Web 3 phenomenon – decentralized social networks – to address the growing concerns over privacy, censorship, and user control on centralized social media platforms. Offering an alternative to traditional social media, decentralized social platforms utilize distributed ledger technologies like blockchain where data is stored on multiple nodes and controlled by the users, rather than a central authority. Such systems are designed to enable trust and transparency in online interactions, provide the ability to communicate without censorship or interference, and empower users with greater control over their personal data. This chapter discusses the benefits and challenges of blockchain-based social networks, as well as existing initiatives working towards a more decentralized, democratic, and user-centric model of social networking.