I think this brings up some very good issues, as we reach that 6 week mark, my therapist side is about to come out. People can get very emotionally (and physically) invested in these cases. It is what drives many and as the weeks progress, without many or any answers, tension, frustration, exhaustion all start to pile on.
Amanda, this is by no means directed at you, but I think your post makes for a good jumping off point so sorry for using it...
Please always keep in mind that as frustrated, as ignored, as tired as we are feeling, we cannot even begin to come close to understanding what the loved ones of a missing person are going through. We cannot even begin to comprehend the struggles they are dealing with every waking hour. They often forget to eat, to sleep, to take care of themselves. I have been around too many families to count, watched and shared with them, but I will never (at least I hope) be able to really grasp what they are going through.
In our best efforts to help and to be a part of finding these missing children, it can be easy to start seeing the "me" and the "I" and lose a little bit of focus, the is not about me at all, I have been guilty of this myself.
I urge everyone to step back if you need to, take a breath and gain some perspective about the big picture, there we will all find that our feelings should not be hurt, we are not entitled, and that we are truly there to help, without acknowledgement or attention. If a family doesn't post, it doesn't by default mean a thing, if they don't return that call, same thing. They may just be worn down and broken right now, it's a natural progression of ebb and flow that goes on and on and on.