This paper presents a preliminary analysis for applying Multi Agent Systems to Communities of Practice. In this paper, we present some basic issues on Communities of Practice including a definition and some concepts, namely those of identity, trajectory and multi-membership. We analyze the adequacy of the Multi-Agent Systems technology to support Communities of Practice. We show how some characteristics of Communities of Practice can suggest different applications of Multi-Agent Systems, exploring one of the identified possibilities, more specifically the one related with a member's trajectory into and inside a community.