Are there any websites that teens can go on to find jobs? I'm 15 ..?

About the only thing I can think of, is the fast food places - Wendy's, Burger King, MickeyD's etc. The grocery stores might also need shelf stockers, shopping cart rescuers, etc. Problem you've got, with unemployment so high, high school graduates, as well as others are also looking for anything they can get. That means you are competing with them. You are pretty much unskilled manual labor. Cold cruel fact of life (and the job market). When I look for work, I go to Monster & Careerbuilder, as well as Dice. But for the most part, they are for professional, skilled workers. Don't know of any for 15 year olds. Have you checked your local newspaper, and I suspect they have an online site.