Seriously? Your comment is largely hyperbolic animosity. Yeah, I get that endless image macros and memes are seen as a low-brow form of culture, but "internet culture" is very real and goes way beyond that. I don't understand why you've dismissed it entirely.
I'm willing to be wrong here. If you lump movements like open source and such in, I see your point. But often, self-identified "Internet culture" seems virtually indistinguishable from pop culture.
I'm basically talking about online communities. 4chan, reddit, somethingawful, various game forums, and on down to all the myriad niches, including this one.
True, their contributions to culture have varied wildly along the scales of importance, intellectual value, or whatever metric you choose.
Some examples, though, of what I would consider to be generally culturally impactful movements born of internet culture: Anonymous, WikiLeaks, Occupy, digital piracy, and the gradually changing way people are learning to interact and communicate ("kids these days, with their phones").
Edit: And politics - Ron Paul and libertarianism, twitter everything, youtube debates. And I'm not saying I support all of these things, just that they are pretty widely relevant.
Seriously? Your comment is largely hyperbolic animosity. Yeah, I get that endless image macros and memes are seen as a low-brow form of culture, but "internet culture" is very real and goes way beyond that. I don't understand why you've dismissed it entirely.