Just wondering as I'm 6 out of 7, if there are new ghost areas since the beta, yes I've looked at wiki and location apps etc, just want to know if there is more updated info.
I was JUST going to post the same thing! We now have lots of new places (and lots of new DARK places!) I still have one ghost to find, and I've been to the same old "haunts" - ha (yeah, bad pun).
I'm having the exact same problem -- I'm at 6/7 (all found in known locations), and I've gone to every location listed on www.glitch-strategy.com/wik... . I'll just have to retrace my steps and see if I overlooked one :-(
I found all mine within the old locations, so I figure they're probably the same, but they could have added/changed some.
I think if you visit a street with one of your ghosts right after someone else finds the ghost on that street, they may not reappear right away for you... though I'm not certain. Also (slight spoiler), in one of the streets in the caverns I found the ghost particularly difficult to spot.