The best way to find pictures of ghosts online is to use image engines like found on Yahoo and Google. Some stock photo websites will also contain a section with ghosts or horror items.
yes there are ghosts could be in your house because they are dead family trying to worn you about something.
no
People think about ghosts because they could of heard stories or recently had a loss to the family.
Different people think differently. I personally don't believe in ghosts, but others may do. And I am pretty sure there ARE fake pictures of ghosts somewhere out there. Some photos that seem to have some weird things in them may be caused by light and the condition of the camera. Some or most of the photos are actually fake or is a result of the reasons stated above. But some could be real.
Not really you can search it on-line or in pictures.
Yes, there are pictures of zithers at the Related Link below.
There could be some ghosts around.
Not that I am aware of. But there could be if you believe in ghosts.
I think the study of ghosts could Ghostology...
Try
It's about what people belive. Me personally, i belive that there are ghosts, but that's because I've seen them. but to a sceptic they could reationalise that by saying it was my eyes playing tricks or somthing.