I use inbox dollars. They basically send you spam email, and you click on it for two cents. They also have surveys you can do. I hit the emails when I am standing in line at the store, or waiting for meetings at work to start. I'll do a survey every now and again if I am feeling bored. I make about 10-15 bucks a month. Not a huge amount, but I look at it like picking up pennies on the ground. If anyone is interested, let me know and I can refer you.