access to information
Taking a conceptual look at the idea of "Social Learning", a string of ideas is apparent. Ease of access to information means that more people are on the network, and that information exists in more locations. This in turn causes more people to access information. At the next level: there is more interaction between people, and also, people and information have begun to interact. This in turn causes people to interact more with each other.
Einstein was once asked to leave a classroom for talking back to his teacher, saying that memorising history dates was useless: “When you need one, you can look it up in a book,” he said. But what happens when an entire generation grows up with the idea that anything can be looked up?