"Can we seriously get involved by phone, by email or fax, if we are undocummented?"
Take some time to read some of the other threads if you REALLY want to be as informed as you claim you want to me. The lazier you are, the less you will know and will hurt you.
Of course we can get involved. Haven't you heard of everyone calling State senators & supporters of DREAM? That's what you should be doing now.
They won't ask about your status, and certainly not about your address, just your zip code.
Being scared is definately not going to get you anywhere, and we need the most help we can get.