{Excerpt} According to Etienne Wenger, communities of practice are groups of people who share a passion for something they do and who interact regularly to learn how to do it better. Communities of practice define themselves along three dimensions: what they are about, how they function, and what capabilities they produce. Each community of practice has a unique domain, community, and practice (and the support it requires). But, inconnecting and collecting, communities of practice share the following common characteristics: • They are peer-to-peer collaborative networks. • They are driven by the willing participation of their members. • They are focused on learning and building capacity. • They are engaged in sharing knowledge, developing expertise, and solving problems.