Contemporary information and communications technology (ICT), particularly applications termed "Web2.0", can facilitate practice development and knowledge management for busy clinicians. Just as importantly, these applications might also enhance professional social interaction and the development of an interprofessional community of practice that transcends the boundaries of the intensive care unit, health service, jurisdiction and nation.We explore the development of Web 2.0 applications in health care, and their application to intensive care practice in Australia and New Zealand. The opportunities for using podcasts, blogs, wikis and virtual worlds to support clinician development and knowledge exchange are clear in theory.However, strategic leadership from the Colleges is needed to fully exploit these technologies and to enable the development of a strong and sustainable ICU community of practice.