The document discusses the evolution of knowledge management (KM) practices from traditional techno-centric KM to more modern social or KM 2.0 approaches enabled by new social tools and technologies. It outlines how KM has shifted from top-down, centralized practices focused on databases and explicit knowledge to more bottom-up, decentralized approaches leveraging tacit knowledge sharing through social networking, blogs, wikis and other collaborative tools. The rise of Web 2.0, social media and participatory approaches are changing how people work and share knowledge in a more open, transparent and social manner.