Small internet business, low cost with even little profits? any ideas?

Right I am 17 and me and my friend would like to set up an online business not too high start up cost and doesn’t even need to be too much profit as this will probably be our first internet business of many that we do. So any ideas that are low risk and are pretty easy to set up how much should it cost and how much profits (and yes we are willing to put the time and effort in). Thank you =D
So just looking for ideas thanks

If you are prepared to put in the work check out The Thirty Day Challenge.

It is run as a free annual event by a couple of real internet millionaires as a fund raiser for Kiva.org, a charity that specialises in micro loans for third world entrepreneurs.

This year they have decided to keep it going all year so you can join anytime. The training is free, and shows you how to make a living online without spending a penny.

What they teach each year is cutting edge and usually three – six months ahead of every one else.

Several people have gone on to become millionaires. Remember that is within 3 years.

It has changed numerous lives. It changed mine!