Here is a link that you might find useful. It is about AA and sponsorship.
http://aa.org/en_pdfs/p-15_Q&AonSpon.pdf
Welcome to AA.
If you would like to get started learning more about the Big Book and/or the Steps a great place to start is right here at our forum under our 12 step support step study section.
Here is a link to that area
http://www.soberrecovery.com/forums/step-study/
The Steps are on the top of the forum and the chapters of the Big Book as well as other discussion posts are located below the steps.