I’ve already mentioned my thoughts on the use of Google as a way of creating a PLE. A post of Joan’s on the Social Learning site points to Graham’s position paper on PLEs – which is well worth reading. He’s got a list of tools that could be combined to make a PLE (given the list, I think he’s a Mac user). One thing he’s mentioned is Ecto – which others had mentioned at the PLE workshop. What I’m not sure about is what the differences are between that ($17.95) & w.bloggar (free).