VK (VKontakte) is the largest European online social media and social networking service. It is available in several languages and is especially popular among Russian-speaking users. Developed by Mail.Ru, Pavel Durov
License: Free
VK is a robust social networking platform popular in Russia, offering extensive multimedia sharing and community features, but raises concerns about privacy and moderation. In contrast, Diaspora is a decentralized network prioritizing user privacy and control, but it lacks the extensive user base and simplicity of mainstream platforms like VK.