I really like the diagram from this blog post. It seems to describe our progress from isolated to connected as learners quite well:
A Principal’s Reflections: The Limitations of Being a Disconnected Nomad
It seems like just yesterday that I was a disconnected nomad working hard to maintain the status quo and conform to a rigid system commonly known as education. You see, prior to 2009 I was adamantly opposed to even the thought of using social media for both personal and professional reasons. As a building level leader burdened by endless responsibilities, I could not fathom wasting even a precious minute in what I saw as a perpetual time sap. I swore that I would never be on any social media site and became disgusted when friends and family brought up the topic. As a result I chastised my friends and made sure that the environment at my school was not only free of this stupid entity, but also other forms of distracting technologies that would interfere with student learning. It was a powerful combination of perception and stigma related to social media that convinced me it was a product of the devil that could only bring about harm and misfortune. Thus I was convinced that there was absolutely no value in using social media in my life.