1) The document discusses personal learning environments (PLEs) in the context of Web 2.0 technologies and the shift towards self-directed learning.
2) It describes how students currently learn both formally and informally using various social media and technologies outside of traditional learning management systems.
3) The document proposes that when social media are used intentionally for learning purposes or when learning is recognized retrospectively, they can be considered "Web 2.0 Personal Learning Environments" or PLE 2.0.