The document discusses using Web 2.0 environments and professional networks for competence development and professional networking. It describes how personal learning environments (PLEs) help learners manage their own learning goals and content. Some advanced students arrange content and contacts into personal and professional networks, with the transition from PLE to professional learning network (PfLN) supporting lifelong learning. Building a PLE provides a core for expanding networks and socialization processes that allow learners to share and reuse resources.