Malcolm Gladwell wrote The Tipping Point fifteen years ago. The book discusses the concept of critical mass. When enough people begin to do a thing everything changes. It reminds me of the story of the 100th monkey. Having not read the book I am not sure of content but the idea behind it.
In Education we are at a tipping point with technology. There are groups of people integrating technology in life: The Innovators, Early Adopters, Early Majority, Late Majority, and Laggards. The chart from 2009 shows the early adopters on twitter. Six years later we are looking at late adopters and laggards. It is interesting that the hot trend in education right now is twitter. Educators are using twitter to build a Professional Learning Community and connections with other educators around the world. It is a great tool.
I think that educational technology in and of itself is following this trend so apparent in Twitter. I think back to the days of innovators with the OKTechMasters program. The OKTechMasters consisted of a small group of educators going out into the classroom and teaching teachers how to use technology. We were on the vanguard of a movement then. The program lasted two or three years and the grant funding the project expired. Many teachers were impacted by the program and the innovatite teaching methods presented through the curriculum.