A most interesting podcast by Graham Attwell via The Bazaar in which he traverses a wide range of ideas behind the Personal Learning Environment. It refers to the origins of the PLE, in dissatisfaction with older forms of educational technology and concerns over institutional control. However it goes on to question whether the PLE is really the answer, suggesting the use of freely available Web 2 tools for learning might offer a better way forward. Well worth a listen!
(Thanks to Glen for referring this to me)