With all the "strange sounds" threads, I wasn't sure where to put this, or how to search if a video had been posted before. Mods, feel free to move or delete as needed, obviously.

I didn't make this one, but its a good compilation of strange sounds around the world all from Jan. 2012:

[yvid]frame width="560" height="315" "http://www.youtube.com/embed/-1IIUcNI0cw" frameborder="0" allowfullscreen>
Watching all in one, I still find it creepy, but also note that the sounds are not exactly the same - some booming, some hum, and some come with shaking, apparently. To me, I don't think we can categorically say its all from the ground or sky. I think there is more than one thing going on (atmospheric disturbing the earth?).

I'm sure there are LOADS of copycat fakes out there, but I just can't believe that none of these sounds around the world are not real.

I'd think TPTB would flood the internet with fakes before admitting something very very strange is going on.....