I've noticed on any new campaigns that my click costs have been blasting up over the course of the first day or two. Not the gentle rise as is typical of ads going stale, but a doubling of click cost day over day. Is anyone else noticing this behavior? I've got US ads with .1 CTRs and .90 clicks.
Yeah Facebook click costs have been going up for me as well 
Yeah they are insane at the moment. ROI on a lot of my campaigns is getting smashed.
had a campaign for USA at 4cents, then day later at like 8cents, now 16+ cents :S
Yes we have heard a lot of this happening.