This is the official Shadow People site. Read about them.
Anyway, I believe in them, although, I believe them to be demons, for I am Christian, but, blah. I commonly see one, every night at 2:00 to 2:30 AM. If my story gets accepted, you can read it on that site.
Anyway, it's late...and I should be in bed. So, I will end my post after this period.