The netroots page is those 4 guys page. Sure they have one hell of a readership and can push it. But it's their page. Create one yourself, put the candidates on it you want, then post about it where people will find out about it.

Will you draw like the Netroots page? Probably not. But that's the perks these guys get for being successful - they actually have readership who will make such a page very active.

But nothing is stopping you from plugging the hell out of one of your own pages...