If the social consequences of 3D printing and their more capable cousins (molecular assemblers) interest you then I can high recommend Charles Stross's 'Singularity Sky'. It's a study in disruption.
The more mundane current variety (well, slightly advanced) make something of a showing in his 'Rule 34'[1] as well.
Doctorow's 'Makers'[2] is another, at a similar level.
Programmable molecular assemblers, if they're even possible (see: the various critics of Drexler), are so far beyond our current tech as to have almost unimaginable potential consequences, socially and otherwise.
