I am not content with my understanding of PLN (Personal Learning Network) vs. PLE (Personal Learning Environment) unless I see in in a picture. Here is my attempt:
Of course, my personal network is just my view of the network of my contacts and resources. It is a tree with few cross links (such as from C to F because I “met” F via C).
My personal environment is my dashboard, containing not only the entry points (kind of “plugs”) into my PLN but also the fuzzy notes, scribblings, and sketches (which I cannot share because they are incomprehensible and useless for others), and the tools to process them.