Sometimes there is no social milieu to join because the people you know don't share your full range of ideas or points of view. Socially you may be alone in what you think or say.
Unconventional points of view can be socially dilute in that many are rarely, if ever encountered in daily life. For me this is the big change wrought by the blogosphere - the way it concentrates these dilute viewpoints. Virtual threads connect like-minded people with unconventional ideas in ways that may never have happened socially.
Searching out uncommon conversational threads is rather like hunting for rare books in that you don't always know what you are looking for until you find it. Yet you often know what you aren't looking for - more of the same.
What effect is this having on social and working life? I don't know, but maybe some of us no longer see social or working life as the only significant source of intellectual stimulation. Maybe we never did, but books don't answer back, newspapers are too mainstream and TV is a joke. Now there is another alternative, an interaction between those who think alike but would never have met in the pre-blog world.
I sense many subtleties going on here, social changes we haven't thought through because we have yet to recognize the causes and the effects in any coherent way. But the way blogs overcome the social dilution of unconventional views - that must surely be important. Radical literature, societies, cabals and so forth always achieved that to some degree, but books are unidirectional and social groups hierarchical.
Blogs seem to offer something new but not yet fathomed. A cause without an effect, because I suspect we have yet to see the effect and are not even fully au fait with the cause.