David Warlick posted a picture of his personal learning network on his blog, and then twittered about it and got a bunch of questions and responses, and responded to some of those on his blog. It's an interesting idea. I'm thinking of printing the picture, or making my own diagram, and using it as an activity at our next staff meeting. If you have a picture in your head of your personal learning network, does that help you consciously take more advantage of it? I would think so. It would definitely help you see how your learning process has changed over the last 10 years.
My personal learning network certainly involves Twitter, del.icio.us, friends, conferences, colleagues at work, books, articles. He filters all his online input through aggregators. I haven't gotten to that point yet. I still check out links that are sent to me in emails or posted on Twitter. I've received some excellent information that way, and I guess this is an example!