I think the personal/professional is all of a kind. Wherever we learn fits both groups. One thinks of PLN as a part of web 2.0 and surely that is what is caused us to think more about it BUT we learn both 'from the cloud' and from F2F experiences. I wouldn't want to give either up.... and I wouldn't want my students to do so either. Maybe I just want us all to more discerning when we make either of these links a permanent resource by exploring for a bit of time and then make a selection based on our own needs to grow in a given direction at a given time.
Marianne