You should see the lovely young ladies constantly trying to pick me up on Facebook. I always drag their photos into images.google.com to see if they are using pics of some famous person. So far I have identified a singer from Nigeria claiming to be a programmer in Kentucky, an artist in Milan claiming to be from Texas, and a few others not that interesting.
What they do is send friend requests to lonely old men, lure them into video chats on another site, and then blackmail them for money.