Let's say you REEEAAALY want to write and/or illustrate a children's book but after getting the idea, and maybe starting to put it on paper, you don't know what the next steps should be. Whenever I'm quizzed on this topic, my first recommendation (aside from patting yourself on the back!) is to join the Society for Children's Book Writers and Illustrators (SCBWI). It is simply the best community to learn, grow, connect, and move your dream to reality.
If you are still trying to decide whether to join, read this great post at Ink and Angst http://inkandangst.com/gate-crashers-ask-why-scbwi-2013/ and you'll get it.
This blog shares insights on the craft of writing children's books and the publishing industry, and supports creators on their journey.