How accurate are people search websites (fastpeoplesearch, whitepages, spokeo, etc)?

I’m trying to find an high friend who I haven’t talked to in years. Three websites say she moved to a new house two years ago. Six websites say she lived in that house for two years but moved back to prior address. I don’t want to spend money if the information is not accurate.
Accurate
Not accurate
Current address accurate but everything else is not accurate
Select gender and age to cast your vote:
How accurate are people search websites (fastpeoplesearch, whitepages, spokeo, etc)?
Post Opinion