I am reading a lot of interesting and thoughtful, not to mention informative, introductions on the Ning. Here are some extra ideas if you need to get started or want to add something else.
Use these questions as a guide to record your short audio introduction to put on the Ning.
* Explain who you are, where you live and what school you go to
* Tell a little about what life is like where you live
* Tell a little about what you do at school, for a hobby etc