I don't know that journalists are responsible. Sure I've seen that odd media piece talking about the staggering number of people using social media, but nothing I've seen (here in Australia) has suggested that I'm less worthy for not being involved.

I don't know that there is any group to 'blame' for the rise of social media. I just think it's what a large percentage of people want (avoid real human interaction, instant gratification, the feeling of importance from writing something that the 'world will see', etc etc).