The majority of Lifehacker readers start their hunt for lost acquaintances at Pipl.com. If you're not getting lucky at Pipl, try some good old-fashioned GStalking at the second-place finisher, Google. Coming up short with both Pipl and Google? Poke around with the third-place search app in this week's Hive Five Best People Search-Engines, Facebook—the place where people go to be found.
