How to find people on FACEBOOK?

[bad guy wanna get good]

How can we find those people on Facebook who have set their privacy such that no one can find them unless they are in their friend lists? I want answers from the experts who can really solve such problems and who have done so in the past! The answer to this question is really important to me so please suggest some remedy...
But to become their friends we have to find them first.. only then we can be their friends.. the problem is the are not visible anywhere on facebook where as they are present there all the time...

[Stuart]

if they have set their privacy settings so that they only want friends finding them you will have to become their friend

[Syko]

using yahoo mail u can do
1st of all link ur facebook accout with ur yahoo account
& then if that use have send even a single mail though that facebook email id
then u'll be able see his facebook accout

Another way is that sinple search on facebook search option
but not able to search by specific given email id

[dannyboy2111]

if they restricted it than there is no way to find them

[James Jones]

if they have set their privacy then there is nothing you can do. If they haven't then its pretty easy to do but I guess you already know that. You can search for people on google and then click through to Facebook profiles this is a good way to find people using Facebook. If you are looking for people who have set their privacy you may have to consider tracing them off line. If this is the case I have put two sites that could help you trace people in the UK offline. One is free one is paid. Hope this helps.