They, as all the other candidates, need to reach out to people more through their online communties. It's not an easy task, but that's why these cammpaigns need to put more money into the development of more democratic technologies. Focusing on a couple of fenced in social networks is not as sound as it seems; especially when it looks like the users of Myspace and Facebook overlap by more than 50%.

Honestly ... do you know what the word network actually means?