Anybody know anything about the modeling business?

[TNDemo]

Somehow my daughter managed to fish some great genes out of the gene pool and all her life we have been continually approached by people wanting to know if she is a model and saying she should be. I have never pursued this in any fashion because (a) I know nothing about it and (b) I wanted it to be her decision. She is definitely a natural for the camera and knew how to turn it on at a very early age but we were just too busy to think about it before now. My older daughter has been after me to get something going because it could be some college money for her. So daughter is 16 now and wants to look into this. Is there such a thing as a reputable company? What do I do? Just mail some shots to them? Just want to stay local at this point. What do I need to watch out for?