Researching Internet for interesting Chinese sites I found Childroad.
This is a professionally done site with more than 1000 books for children read in Chinese Simplified language. Please check it out. They have samples of books you can review.
I bought subscription for this site as Eaton loves when someone reads books to him. Yan, our Chinese friend, comes only once a week. To speed up a process of learning that language this site should help.
So far Eaton listen these stories. I don't understand anything, but I can say they repeat some phrases in a story in order to understand better. I like how it is read too. They have professional voices of Chinese speakers. Very well done. I hope Eaton will enjoy that site for longer period of time!
OO I almost forgot to mention. Some subscriptions allow you to download books on your computer. I plan to do that for my little "pączuś" - Nathaniel, as he is more auditory child.