Democracy 2.0 not quite the upgrade we first thought: Remarkably, what the survey found was that political participation was much more highly stratified by SES [Socio-Economic Status] quintiles for Web-based political acts than for traditional political acts; this result held even when controlling for age and broadband access, and the stratification exists even within age groups. Indeed, the results for simple use of social networking sites weren't even remotely as stratified by SES. [...]
The bottom line is that the web has not solved the problem of political stratification in America, and maybe we should not have thought that it could... the simple fact is that it hasn't lead to a Jeffersonian paradise in which everyone, regardless of their class, is equally involved in politics.