Making money is a frame of mind. Decide if you want a job or if you have an entrepreneurial streak. Here are some great ways to make money if you're under 18.
Work a Part-Time Job - You already knew that duh! Remember money is a mindset. Get the right part time job. Decide how many hours a day and how many days a week you are willing to work. I would say no more than 3 days a week for three reasons: school, social life and you many want your own business and well get into that later.
What are the right part time jobs?: