I found a website the other day for teenagers with parent's who have cancer. It's called "riprap" and you can find it at:
http://www.riprap.org.uk/
There are stories from young people who are going through the same thing and there are also tips to help you deal with the situation. I really do reccommend this website.

I also started reading a book called "Even The Eyebrows?" by Sharon Morrison. It's an account of a woman's experience with breast cancer. It's not a scientific, vague book about the disease...it's straight-forward and to the point with a bit of English wit to lighten the mood!
This book is not only helpful for those with breast cancer, but for the friends or loved one's supporting them so they are aware of what they will be going through.

I hope this helps you in anyway possible.
x