This is a great link to related information on the Hum everyone seems to be hearing.
www.eskimo.com...
I'm beginning to wonder if the HAARP array is just a cover story to make people think that thats what's causing the hum. I remember reading a story
about aliens visiting some ancient tribe over a thousand years or so ago and leaving them an orb which they said to keep watch over. When it starts to
hum/vibrate it means they are going to return very soon. It's humming again from what I have read.
Could it be caused by planet X? Their returning space craft? Hmmm.