I am thinking about my PLE (personal learning environment) and it includes all of the above, and more. Whether it is an academic institution or a YouTube video, I am happy for the opportunity to learn stuff.
We all need a PLE as far as I am concerned. As an educator, I know I do for sure. Has the role of a teacher changed? Of course! I love those changes. I am mixing mine up right now. Images and model are in progress.
So, for any and all interested in getting their PLE on, read about it, think about it, and focus in to begin. In other words, you can consider starting small. Then, grow your PLE.
Have some fun and get your diagram going. A model designed by you will be the best and probably the most useful for you.
Want to see some examples to inspire you? For inspiration, check this out http://www.edtechpost.ca/ple_diagrams/index.php/