I picked up three well dressed young women at an expensive hotel, going to the Hard Rock Hotel in the Gaslamp Quarter. On the way they talked continually, eventually settling on the topic of how one of them was making extra money. She found a guy on Craig's List looking for somebody to take an online course for him. She took the course, as him, and aced it, and she got $200 for it. She said it was entry-level math, and was simple for her.
He told some friends, and now she has a nice cash business going. For summer session (don't know what college or where she lives) she has made $2000 without breaking a sweat.