Again, you find yourself scanning through profiles on various online dating websites when you come across a post that piques your interest. A girl who claims she is a student in town says she will "make you happy" if you help her out of a bind.
She's poor, but needs an essay or textbook from school in order to pass the class. The essay is online as a PDF file, on a certain website. She says she will perform sexual acts on you if you go to the website and purchase the essay for her.
For some desperate guys, this may sound too good to be true. And it is. The "girl" they meet is also the one who operates the website. Once she gets the credit card, it's as good as maxed out. This scam takes various forms, but the essay item for purchase seems to be the most popular. Not to mention that the girl is most likely a guy, just like in many other cases.
How to avoid: think with the head that's on your shoulders, rather than the one that's between your legs.