Seb Fiedler summarizes some of the recent discussion around personal leaning environments. Good, recent, set of links. He writes, "I treat personal learning environments more as a psychological perspective. What forms my 'personal learning environment' at a given point in time, and for a particular purpose or goal (that drives a learning project), is largely determined by the range of resources that I am able to perceive, locate, link to, access, manage, and so forth." This item and the next via Mark Oehlert.