Even if your teen doesn't own that much stuff that can be sold on Ebay, they could sell stuff for mom and dad and maybe split the commission.

Here is an Ebay selling article to get you started... How do you put things on Ebay?

If you or your teenager has a decent camera, they could possibly make money selling pictures online. It does take a while to start making pretty good money, but once the ball is rolling it can be pretty nice passive income.

Believe it or not people still need to have their lawn's mowed! It may just be the perfect job for today's teens. Many of them are couped up at their computers all day and getting outside and sweating a bit may just be a perfect job for them!

If your teen likes to create any kind of crafty things they can sell them on Etsy.com. It is full of sellers selling all kinds of items from candles to curtains.

Even if your teenager doesn't get the best grades, there is surely something that they are good at. Chess? Soccer? Algebra?

Put an ad in your local paper, school, or Craigslist and they will have a shot of getting some work as a tutor for another child who needs help.

There are so many small businesses that are longing to have a web-presense, but don't want to shell out the thousands that they think is required to do it.

Many teens know how to make a simple and basic website that many business owners would gladly pay a few hundred dollars for. Sounds like a great business idea!

There are places like Ciao, Epinions.com, ReviewStream.com that pay for product reviews - if your teen has an opinion ;) and knows how to type quickly this could be a good money making venture for them.

If the teen loves to write, there are many places that they can write and sell their articles online. Check out websites like Constant-Content.com, ArticleSale.com, Helium.com.

If your teen has a creative or artistic side, they might consider learning how to make money designing logos for small business. There are also tons of websites that are in dire need of a simple logo! Get at it!