Selling original ringtones is one of the easiest ways to earn money on the net, all that you need is a bit of creativity and some music and rhythmic sense. I am making a easy to understand tutorial so that you readers will have less doubts to ask.
Steps to follow :
1> Go to Ringtonizer
2> Use your creativity and make the best ringtones you can.
3> Upload your created ringtone to Upload-Mp3
4> Now sign up to ringtone affiliate network and sites (google it and you will easily get it)
5> You can also create your own website wherein you can sell premium and free ringtones so that you will get good traffic
6> Register to Youtube, create videos and earn money!
Just follow these simple steps and you could earn upto $1000 
But once you become successful in this, please do remember your tutor and give him your premium tones for free.
Pett on July 3, 2009
Greatings, Not sure that this is true:), but thanks for a post.
Thank you
Pett