One of the first people I ever got to know in the online world was Joi Ito. That's going as far back as 1984-85 and the says of Unison and the Well. I got to know Joi through what was one of the earliest "social networks" around, called the ENA, the acronym for the Electronic Networking Association.
Yesterday the former quantum physics major at University of Chicago wrote a post questioning if we really need a Mobile Internet. He calls into question the current mobile structure that exists, both from a technology and ideological perspective.
It's a great read.