QUOTE(Devvo)
?(oh yeh and i also want to say im annoyed when someone posts a topic and dooesnt realise theres another topic the same but earlier on and then someone has a go at them because there was already the sa=me topic. you cant go through every topic and see which ones havnt been done,please some respect here!)
That's what the search function is for.

You just type in a few keywords and tell it what part of the forum to search and it will come up with any relevant posts on the matter.
As for your question about ghosts being everywhere, well, a lot of what people tend to accept as ghosts probably aren't. Most serious researchers dismiss orbs out of hand, I believe. Also, there's a good chance that a lot of the pictures that show up online are photoshopped.
You do get reports of ghostly activity from an enormous variety of places, but keep in mind that in most of those cases there's probably a more mundane explanation for whatever has been experienced. So there really aren't, probably, ghosts *everywhere*.
There are, however, monsters under your bed.