Modern computer-based mapping tools may be used to visualize not only concept knowledge like traditional concept mapping tools, but also content knowledge (annotations, text and multimedia cognitive artifacts), knowledge about knowledge resources (e.g. websites, WBT programs, tools), as well as links between knowledge elements. In addition they provide free interactive access to mapped knowledge elements and, thus, may enhance knowledge use. It is suggested that computer-based mapping tools, in particular hypertext-like tools, may augment the capacity of the human brain in managing knowledge when students cope in a self-regulated manner with complex cognitive processing tasks, e.g. problem-based learning, web-based studying, hypertext writing. The paper aims at analyzing the potential of computerized mapping tools for supporting individual knowledge managing in e-learning scenarios.