My ten year old niece loves reading books, chapter books apparently. She also has been considering journalism as a career. I told her about Adora Svitak writing her first book at age seven and showed her Adora Svitak presenting on TED Talks and she promptly began her investigations into the life of Adora.
For those not familiar with Adora Svitak, she was born in 1997 and she began her writing career with her first publication of a book “Flying Fingers” and writes a public blog. You can learn more about her on wikipedia. You might also want to look at Adora’s website.