The last thing the internet needs is yet another writer giving other writers advice.
So, I stopped blogging regularly on my blog that was aimed at fellow writers only. You can go visit it at literallyhumann.blogspot.com, or read the posts below. I think the most useful thing on the blog site are the links to the checklists of common mistakes that most beginning writers make.
If you are interested in writing for children, I recommend you try the Society of Children's Book Writers and Illustrators as your first stop. It's a good organization for networking and learning the basics if you are just starting out, and has local and regional groups across the USA and internationally.