From the article:
“If you think about it, a good portion of all the interesting stuff you come across in your PLN has to do with people asking questions. I started putting my interesting stuff in one place. Eventually, I’d assembled all the questions I could remember, placed them with the person I remember asking the question, and then sort of got stuck. While posting them on Twitter or Plurk.com or in a blog space is okay, it isn’t a good location if you want to access them easily. More to the point, what exactly was I going to do with these questions? How was I going to extend the learning beyond simply asking the readers of my book to ask themselves questions, many of which could potentially be answered with a simple “Yes” or “No”?”