Personally, I find most of facebook and the rest of its ilk nothing more than noise. Nevertheless, I don't mind their existence: its users usually yell their no

Personally, I find most of facebook and the rest of its ilk nothing more than noise. Nevertheless, I don't mind their existence: its users usually yell their noises within the boundaries of these sites, which in turn decreases noise elsewhere. And THAT is a good thing: I can find information easier. And there always were, and always will be hubs for various topics, that are relatively low on noise, and as more people discover the internet, more will find it, even if they spend some time yapping about on pure-noise sites first. And that is also a good thing.