Personal Knowledge Management is a process of collecting information that a person uses to gather, classify, store, search, retrieve and share knowledge in their daily activities and the way in which these processes support work activities. - Wikipedia entry on PKM
Personal Knowledge Management (PKM) is the art of managing your own knowledge by keeping track of what you know, what you don’t know, and what you need to know. It involves creating a system that enables you to find information quickly and easily when needed, serving as a framework for managing information and enhancing creativity and innovation in knowledge work.