How do i find info about a person when i dont know the details about them?

Question:

How do i find info about a person when i dont know the details about them?

ie, date of birth, address?

Best Answer - Chosen by Asker: Talk to your mutual friends and ask the important questions...

If you don't have any mutual friends, you have intelius.com, zabasearch.com, whitepages.com and infobel.be (for anyone in the entire world, searching by country).

P.S. Please don't be a complete dweeb and post the person's name and what you do know on an international board like this one where the possibility of that information being misused is extremely high. Honor the person's privacy and respect their right not to have their name, address, telephone number, etc posted where any idiot could steal them. We have an ethical obligation to protect the living.