Sources of Help for Scratch Programming
1. “Help” button on Scratch home website – lead to many links where you can download Scratch cards and so on.
2. ScratchEd - http://scratched.media.mit.edu/
Some books
1. Learning to Scratch by Tannis Calder - http://www.lulu.com/spotlight/tannis
2. Super Scratch Programming Adventure!: Learn to Program by Making Cool Games by The LEAD project
http://www.amazon.com/Super-Scratch-Programming-Adventure-Program/dp/1593274092
http://www.amazon.com/Scratch-Programming-Teens-Course-Technology/dp/1598635360/ref=sr_1_3?s=books&ie=UTF8&qid=1389754428&sr=1-3