The document discusses personal learning environments (PLEs) and how they are shaped by Web 2.0 technologies and social software. PLEs allow learners to manage their own learning across different tools and contexts by organizing resources and connecting with other learners. The key aspects of PLEs are that they are learner-driven, personalized, and not confined to any single learning institution or technology. PLEs recognize that learning occurs both formally and informally through social interactions and sharing online. They challenge traditional education systems by giving more control over learning to individuals.