Is the internet changing the way you think?
Very interesting Adam Gopnik (The New Yorker)
article which also delves into the issue of the use of technology as a tool of freedom versus control.
More general impact of technology on civilisation - rather than just political discourse - books maybe worth checking
Technological Visions: Hopes and Fears that Shape New Technologies Sturken, Thomas, Ball-Rokeach (eds)
Communication as Culture: Essays on Media and Society, Rev Edn, G Stuart Adam
A talk by Baroness Susan Greenfield - a very interesting speaker ,on the future of the brain including re the impact of biotechnology, nanotechnology and the internet