Want to know if two people are friends?

Find out if they go to the same parties.

A company is concerned about collusion among its competitors.

Are they golfing together?

How do you determine who's behind a threatening anonymous letter?

Go fishing.

Trouble in someone's past doesn't always have their name attached.

Robotic searches miss a lot.

How do you uncover the things job candidates are hiding about their employment history?

Read between the lines.

You're looking for someone named Stephen Cunningham. There are 1,257 in the U.S.

How do you find the right one?

How do you figure out who leaked your company's confidential document?

Connect the dots.

How to determine if your associate is a wanted criminal:

Start with his middle initial.